ebook img

Two new species of Galphimia (Malpighiaceae), and a key to the Mexican species with deciduous petals PDF

2005·5.5 MB·English
Save to my drive
Quick download
Download
Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.

Preview Two new species of Galphimia (Malpighiaceae), and a key to the Mexican species with deciduous petals

24: l3-iy.:'.(«)5. TWO NEW OF GALPHIMIA (MALPIGHIACEAE), SPECIES AND A KEY TO THE MEXICAN SPECIES WITH DECIDUOUS PETALS Anderson Christiane Michigan Herbarium University of Ann 3600 Varsity Drive, Arbor, Michigan 48108-2287 two new Mexican Abstract. Galphimia mirandae and G. oaxacana, S] A and key Mexican species of Galphir, are described illustiated. to 14 all als, presented. INTRODUCTION Galphimia Cav. (Malpighiaceae) comprises ca. 20 species of large herbs, shrubs, Galphimia have yellow and but four occurring in Mexico. Species of treelets, all The deciduous most but often suffused with red. petals are in species, in petals, become and and those grouped in the G. glauca complex the petals stiff spreading, New are persistent. The calyx lacks the oil glands that are found in most genera of World Malpighiaceae; however, few species a small gland, which resembles the in a some leaf glands, borne at the base of the sinus of or all adjacent sepals (Castro is The The schizocarp breaking into three cocci. genus placed et 2001). fruit a is al. is Lophanthera Adr. Spachea Adr. and in the tribe Galphimieae, along with Juss., Juss., Cameron Anderson Davis Verrucularia Adr. Juss. (W. R. 1978; et al. 2001; et al. 2001). Many were included Galphimia were described in Thryallis L. or species in first name conserved over transferred to however, the Thryallis Mart, is Thryallis L. (C. it; name Anderson 1995, 2003), and Galphimia Cav. the correct for this genus. is A named and few of the Mexican species with deciduous petals are aptly easily however, most species are recognized, (a: e.g., ( , , i i and the name "G. gracilis" widely misapplied to them. Galphimia less distinctive, is occurs Tamaulipas and Veracruz, as well as in adjacent regions of Hidalgo, gracilis in an ornamental Puebla, Queretaro, and San Luis Potosi. also widely cultivated as It is A warm regions worldwide. recent review of the Mexican collections of Galphi- in among was mia revealed three undescribed species material that associated with G G Anderson and two mirandae and G. additional novelties, langlassei (C. 2003), oaxacana, are described here. A Mexican key presented below to aid in the correct identification of the 14 is Commonly synonyms some names encountered with deciduous for species petals. noted are in brackets. NEW SPECIES Galphimia mirandae Anderson, nov.—Type: Mexico. Puebla: Mpio. Tehuitz- C. sp. NW km de Matamoros, 1350 m, 28 ingo, 12 de El Pitayo, carr. a Izucar Jul al MEXU!; MBM!). 1983, Torres C. 3296 (holotype: isotype: Fig. 1. MH KSII'i • ')! [II, 11! !' M-'ll ' ! : FIG. {.('jtilphinuu mint, inc. a. heal wild o\alc lamma; detail of base oflamina, showing marginal i, gland, b. Leaf with elliptical lamina, c. blower borne on pedicel and pcdariclc. with portion of inflores- cence axis; note calyx gland, d. Lateral petal, Posterior petal, Abaxial view of stamens; outermost e. six f. stamen at left opposes posterior petal, outermost stamen at right opposes anterior sepal, Gynoecium. g. mm; Scale bar = a, 4 cm. insel 4 b. 4 cm; cm: d. s.7 mm: mm. {Rased on: Miranda e. c, ... a. ?l~l <> 1 l> I I : Torres 3296.) C. Frutcx arbor Laminae cm cm vel parva. 3 6,5 longae. 2 4 lalae. ellipticae vel ovatae obovatae vel vel rhombicae, glabrae, succulcnlac. margine Integra, glandibus mm mm cm 0.5-1 diametro, 2-4 sessilibus; petioli 0.5-1 longi; slipulae longae. Inflo- mm mm rescentia racemose Petala Lecidua;pi da ungue later alia 2.5 1.8 longo, 0.5 mm mm limbo lato, 7-8.5 longo, 4.5-5.5 anguste petalum lato, elliptico vel triangulari; mm mm mm mm posticum ungue 4-4.2 longo, 1-1.2 limbo 6-7 lato, 6.2-7.5 longo, mm interdum lato, triangulari \ci aiborbu ilan Anihei 3.3-3.7 longae. Ovarium tic mm glabrum vel suturis pubescens; anteriores 6-6.6 styli longi, stylus posticus 5-5.7 mm longus. Fructus ignotus. Shrub or treelet to 4 m, stems tom< niulo non dabrescenl to glabrous. Ves- mm wavy ture of all vegetative parts of sessile, to crisped, reddish brown hairs 0.4-1 Laminas cm cm long. of the larger leaves 3-6.5 2-4 .5-) long. 1-) wide, elliptical to ( 1 ( broadly so, obovate, rhombic, or oval< ap >blu euh base acute decurrent to (especially in larger leaves), glabrous, succulent, costa prominent second- abaxially, ary veins prominulous or not cm .iiilmi (,< holes 0.5-1 long, glabrous; l I. ,, i i commonly leaf glands a nan, borne on the margin of the lamina well above or the at base, base decurrent then superficially appearing placed on sometimes if the petiole, more or additional glands borne on margin 1 the of lamina, each gland discoid lie I mm mm mm and with a thick rim, 0.5-1 diameter; 2-4 in stipules long, 0.7-1.2 wide, narrowly triangular. Inflorescence terminal raceme, and a the axes, peduncles, pedi- mm tomentulose becoming cels but sparsely so in age; peduncles 3 6 long, pedicels mm 14.5-18.5 long, the pubeso m oncenb ofti n it d a line, with a ring of hairs at e < i i mm the articulation, peduncles 0.2-0.3 limes as long as pedicels; bracts 2.5-3.2 long, mm mm mm 0.5-0.8 wide, bracteoles 1.5-2 long, 0.3-0.5 wide, bracts and bracteoles linear, abaxially glabrous or with a lew scattered hairs; bracteoles borne about the at mm mm middle of the peduncle, subopposite up or to 0.3 apart. Sepals 3.5-4.2 long. — GALPHIMIA MEXICO IN 15 mm 1-1.5 wide, narrowly ovate to oblong, glabrous or at the apex red-ciliate, glands mm absent or rarely with a gland 0.5 in diameter. Petals deciduous, unequal, yellow; mm mm mm mm lateral petals: claw 2.5-2.8 long, 0.5 wide, limb 7-8.5 long, 4.5-5.5 mm narrowly posterior claw 4-4.2 long, 1-1.2 wide, or triangular; petal: elliptical mm mm mm wide, limb 6.2-7.5 long, 6-7 wide, triangular or sometimes suborbicu- Stamens with heteromorphic filaments but subequal anthers; filament opposite lar. mm mm anterior sepal 4^4.5 long, filaments opposite anterior-lateral petals 3-3.2 mm long, filaments opposite anterior-lateral sepals 3.7-4 long, filaments opposite mm posterior-lateral petals 2-2.2 long, filaments opposite posterior-lateral sepals mm mm mm 3.6-4 long, filament opposite posterior petal 2-2.3 long; anthers 3.3-3.7 long, tapered from the base to the apex. Ovary glabrous or with a row of hairs along the sutures the proximal 2/3-4/5, sometimes only with a few hairs scattered along in mm mm the sutures; styles unequal, anterior styles 6-6.6 long, posterior style 5-5.7 Mature not seen. long. fruit m Mil Hxaminh). McxiiM iiiii >ancingo, sobre carre- i.Si>lci\ii-\ 'i al •' in la : « >• < i i 1 tera a Chichihualco 1350m ImI L966 [stein a B) '/ abreras.n (ENCB), Rzedowski 22755 (DS, (] I ENCB, MICH, TEX) id iiannm> Umtiuhi 2147 (MEXU). lull Pu-.hi.a: u | Galphimia mirandae recognized by succulent laminas with large, thick- its is may rimmed glands on the margin; the base decurrent the glands at glance first if is appear to be borne on the petiole, but careful examination shows them embedded mm), The and the laminar pedicels are quite long (14.5-18.5 the anterior in tissue. The exceed the posterior one. label data for the type collection include styles slightly the note "suelo pedregoso"; perhaps this species associated with substrates derived is from volanic deposits. This species named for the eminent Mexican botanist Faustino Miranda is who (1905-1964), collected first it. Galphimia oaxacana C.Anderson, Type: Mexico. Oaxaca: Dtto. Tehuante- nov. sp. N Rancho de Buenos entrando por Hierba Santa, 12 Ricardo, Aires, pec, al MICH! MEXU!). Sep 1985, Torres C. 7306 (holotype: isotypes: F! Fig. 2. cm Laminae Frutex arbor parva. 3.5-6 longa atae, ellipticae vel vel ci ! , parum ovatae vel lanceolatae, adaxialiter glabrae, abaxialiter papillosae vel papil- mm coriaceae, margine integra, glandibus 0.4-0.7 diametro, sessilibus; petioli losae, mm cm racemosa. Petala decidua; 0.8-1.5 longi; stipulae 1.5-2.5 longae. Inflorescentia mm mm mm petala lateralia ungue (1.5-) 2-2.5 longo,0.5 lato, limbo (5-) 6.5-8 longo, mm ungue 4-5 petalum posticum (3.8-) 4-4.5 lato, elliptico vel anguste ovato; (3-) mm mm mm mm limbo 5-6.5 longo, 5.5-6 longo, (1-) 1.2-1.5 lato, (4.5-) (4-) lato, mm Antherae Ovarium pubescens; triangulari. (2.5-) 2.8-3.5 longae. suturis styli mm mm Coccus pubescens. subaequales, (4.7-) 5-5.3 longi. ca. 3.5 longus, suturis Shrub or treelet to 6 m; stems sparsely pubescent, soon glabrous. Vesture of all mm brown wavy, reddish hairs 0.3-0.8 long. vegetative parts of sessile, straight to cm cm Laminas of the larger leaves 3.5-6 long, 1.5-3.5 wide, elliptical or ovate to lanceolate, apex apiculate or sometimes acute, base acute, adaxially glabrous, sometimes epidermis abaxially papillose or only slightly so (the at least blistered), two prominent coriaceous, costa and secondary veins (at least the first pairs) abaxi- (usually appearing white in dry material), the tertiary veins slightly or not at ally cm few evident; margin entire; petioles 0.8-1.5 long, glabrous or with a scattered all lVr.RSirYOI-MlCHH it Nl Ml i i ! i FIG. 2. Ckilphiinia mnannui. lowering branch, Proximal porlion of two leav b. ;i. c. I mi Flower borne on Ian with d. li rti ol id nee axis; note calyx i g | ] petal. Posterior petal. g.Adaxial u. ol a mien opposing posterior petal (at right) and I". | sepal (at left) h Gynoei linn two oeci h wn in laxial anU lain view Scale bai = a,- il i g.4mm e.f.Smm h ,„„, «55:c-f,h Torres , [ mm hairs; leaf glands usually a pair borne on the margin of the lamina 8-15 above mm the base or sometimes with 3 6 glands, each gland diameter, 0.4 0.7 in disklike mm and sessile or raised ca. 0.2 above the epidermis, or sometimes embedded in mm mm the margin; stipules .5-2.5 long, 0.8-1 wide, narrowly triangular, abaxially 1 raceme glabrous. Inflorescence a terminal the a i-in < > , . i [ mm mm peduncles n 3.5-6.5 long, pedicels 10-15 Ion; -.hi! (7-) h !.. i. , i i more often densely at the articulation, in the pedicel the hairs (alien concentrated in extending from a line the articulation to the calyx, peduncles 0.3 0.5 times as long mm mm as pedicels; bracts (\.5-) 2-2.8 long. 0.5-0.9 wide, linear, bracteoles 0.8-1.7 mm mm long, 0.3-0.6 wide, and linear, bracts bracteoles glabrous; bracteoles borne in the proximal 1/5-1/2 of the peduncle, subopposilc. Sometimes shrubs with only | the terminal branches bearing Hush a of small leaves along short internodes (to ca. cm and cm cm 1 long) a short inflorescence, the leaves 1-2.5 long, 0.5-0.9 wide; see mm mm discussion.] Sepals 2.5-3 long. 1.3-1.5 wade, oblong, glabrous, occasionally mm margin the distally fringed with hairs to 0.2 long, the calyx with 1-3 glands, (-4) mm each borne in the sinus at the base of two sepals, glands 0.3-0.5 in diameter, mm prominent and above raised to 0.2 the epidermis. Petals deciduous, unequal, mm mm yellow, the claws suffused wilh red; lateral petals: claw 1.5-) 2-2.5 long, 0.5 ( mm mm wide, limb 6.5-8 (5-) long, (3.8-) 4 4.5 wide, narrowly ovate to elliptical; mm mm mm posterior claw 4-5 petal: (3-) long. (1-) 1.2-1.5 wide, limb 5-6.5 (4.5-) mm long, (4-) 5.5-6 wide, triangular, apex broadly obtuse. Stamens with heteromorphic ANDERSON: G ALPHIMIA MEXICO 2005 IN 17 C. mm filaments but subequal anthers; filament opposite anterior sepal 4-4.5 long, fila- mm ments opposite anterior-lateral petals 2.5-3 long, filaments opposite anterior- mm mm lateral sepals 3.6-4.2 long, filaments opposite posterior-lateral petals 1.5-2 mm long, filaments opposite posterior-lateral sepals 3.3-3.5 long, filament opposite mm mm posterior petal 1.5-2 long; anthers (2.5-) 2.8-3.5 long, tapered toward the apex. Ovary pubescent along the dorsal sutures, otherwise glabrous; styles subequal, mm mm mm (4.7-) 5-5.3 long. Coccus ca. 3.5 long, ca. 2.7 in diameter, dorsal crest to mm mm 0.5 wide and pubescent on the suture, otherwise glabrous; areole ca. 3 long, mm wide; mature seed not seen. 2.5 ca. Phenology. Collected flower from August to October, in fruit from September in December. to Distribution. Mexico (Oaxaca); in deciduous forest ("selva baja caducifolia") and 500-1100 m. pine-oak transition to forest; km Additional Specimens Examined. Mexico. Oaxaca: alrededores del Cerro Guiengola, a 10 aprox. NW (MEXU, MO); Domingo de Tehuantepec, Cabrera 7413 Dtto. Santo Tehuantepec, Mpio. Mixte- al ,- 18 km de Mixtequilla, carretera a Paso Escondido. \ '" hada 19255 (MEXU); quilla, a If- ' I W Campos Mpio. Santiago Laollaga, recorrido por aguaje Coyol, de Laollaga, 16°34'N, 95°14'W, V. el al E MEXU, 4039 MO); Mpio. Santiago Laollaga, recorrido hacia por Arroyo de Hierba Santa, al de (F, y el Cam MEXU, MO); Guichixu, brecha Laollaga-Guevea de Humboldt, 16°41'N, 95°16'W, 4129 (F, 1 • I Dtto. Tehuantepec, Mpio. Buenos Aires, Buenos Aires, rumbo a El Cerro Arenal, Martinez R. 55 (IEB, '.I. ->'<v MICH); Tehuari. '.H)), Dtto. Tehuantepec, Dtto. in ' >• . I . , « i M ( V MO); Tehuante- "Las Palmitas," ladera oriente del Cerro Guiengola, Torres :22 Dtto. ( il . ; 1 . kmalWdelaC (MEXU, MICH, XAL); pecll ^717 Dtto. Tehuantepec, lu-i,, o.u i„ Iii.-nm .*.>/• < I ... ', km N 12.2kmalWdela(Tmi m u>m /20(V.\\\ vU). Dtto T-liuantepec, 11.3 al H.ici.i In- I . < i M / (MEXU, MICH). de La 5HH0 Chiviza. a tfm-z. >; / - s I <i Galphimia oaxacana, known only from the slope of the Isthmus of Tehuan- Pacific and The abaxial surface of the thick laminas tepec, distinctive in leaves flowers. is is its commonly and the costa and secondary veins are prominent. Calyx glands papillose, and and are present in or nearly flowers of an inflorescence, the ovaries cocci all all are beset with fine hairs along the dorsal sutures. & The and Martinez 5880 collections Torres C. 122, Torres C. 5717, Torres C. dif- fer in that they consist of terminal branches bearing a flush of small leaves along short cm cm internodes long) and a short inflorescence; the leaves are 1-2.5 long, (to ca. 1 cm may 0.5-0.9 wide. This growth form reflect particularly dry conditions. Peduncles absent, the pedicels subtended by a bract and a pair of bracteoles. Leaves essentially glabrous or with a few scattered hairs, especially on the midrib abaxially; 2. Nuevo Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Leon, San Luis Gray] Potosf, Sinaloa, Sonora,Tamaulipas. '» ".",. tifoli nil |-'iion in (, linijoiu • 1 • <ii Watson mi oa.Sonora. hi li sin G. vestita S. > .1 i, i i com- Peduncles present, subtended by a bract and bearing a pair of bracteoles, the articulation monly marked band with a of hairs. Ovaries and densely and evenly pubescent. fruits 3. Inflorescence entirely glabrous (except for pubescent ovary); calyx glands present; petals 4. commonly mostly red with yellow markings; leaf glands borne on the petiole, in the proxi- mal Guerrero, Mexico, Michoacan, Sinaloa. 1/6-1/2 (rarely distally); Jalisco, glandulosa Cav. [synonyms: Thryallis pahncri Rose. dasycarpa Small] G. /. Inflorescence sparsely or abundantly pubescent; calyx glands absent or present; petals yel- 4. usually with red markings; leaf glands borne on the margin of the lamina. low, »M K, l« I I I ,1 i . • ! I! ! |l d\ (till ll Hf ill. Jl I I, I, |1 II Hi ill! I ! I I ) I 1 I 1 1 1 I Colima. Jalisco, Nayarit, Sinaloa. 'wiln ud nhi'i |s\nonvin: huniilis (Rose) Nit (i. I smooth 5. Petioles gl ibi >u .,, im ,| ul g hlcts smooth or the \ . ,| > |, mm m Anthers narrow 6. 3 4 lorn;, triangular ouiline (ihe base ea. twice as wide as l\ mm ih. apex); lilameut oi siamen opposing the anterior sepal 3.5— long, filament 1 siamen opposing of the posterior petal shorter than that of stamens opposing the mm mm posterior-lateral sepals (1.6 2.6 vs. 3.5- 4.6 peduncles 0.6 1.3 1.6) times ): ( as long as pedicels; Colima, Guerrero, Jalisco, Michoacan. G An den (Blake) langlassei C. mm 6. Anthers 2.3-2.5 (-2.S) long, oblong or elliptical in outline (equally wide at base mm m mil hlamciii slamrii opposing ol leiio (i ill i: i I I i UK I I .1 || Ih I | III H.I O. ! II l|IO ill I )l| lv I || ,,,. .| I mm lateral sepals subcqual [1.5 -1.7 (-2) vs. 1.5-1.8 (-2.2) mm]; peduncles 0.3-0.5 nil linii n oi il ii I ) i I , i I | i G.mexiaeC. Anders 7. Petioles beset with hairs hoi ne on persistent tubercles and/or only the tubercles (the hairs commonly already shed); branchlets roughened by Ihe persistent tubercles (in G. gracilis 8. Laminas abundantly pubescent alum- and below with hairs borne on tubercles, the m m haus L\cntuall\ slo iimn -Ii .1 ..ii In h persistent tubercles; i I i I i i Guerrero. C G. hirsuta 8. Laminas glabrous or glabratcohcn with some scattered bans on the midrib below, the lammai surfaces smooth. mm m l) ' inn 4 a margin; bracteoles i) i» ili ' i I i i I t I i I i I i borne at ot just b. low ih, ap. ; oi tin p ( ,i |, p. (H -I II nun Ion - » du n I. ii ( 0/i fin lo n Hi| n ii ll I i | I I i I i i i of Hidalgo, Puebla, Queretaro, and San Luis Potosf. G. gracilis Bartli nuh i; ib d in ii ii h hi [i I i i i i I i I, i, i i prom processes, leaf gland to tall d les borne on the peduncle in it I mm the proMinal 4 lo J. pedicels 2 a long, peduncles 1.2 limes as long as the ' I I Oaxaca. pedicels; coastal ,n mlei <a , , , 7. Petioles smooth, glabrous oi with sessile or subsessile bans: branchlets smooth or the hark lightly fissured. Leaves 10. subsessile, the petioles rudimentary; leaf glands mostly absent. Oaxaca. G.sessilifoliaRc 10. u n i. ll\ in I i I I i i | 11. Petals subcqual; ban ImilsloO long priiolcs 2.3 cm long, .5 i 1 cm laminas 7-12 long; Guerrero. Anders G. radiaiis ( . 11. Petals unequal, limb of lateral petals narrower than limb of posterior petal; hairs mm on cm ovarii s bints toll long oi ovaries turn glabrous; petioles 0.4 1.5 long. I cm laminas 2 6 long. 12. ("aly\ glands present in all (or almost all) flowers of an inflorescence: laminas ah commonly axially papilli (oi h epidern u lislered), coriaceous, the I i secondary prominent maiies veins ahaxiallv: funis with on hairs the sutures; Pacific slope of Oaxaca. oaxacana Anders G. ( . '. "alv\ glands absent, or one oi a lew flowers of an inflorescence with or 2 calyx ( I I many glands (rarely flowers with calyx glands); laminas abaxially smooth, suc- m hihhIim m, culent or chartaccous, ih ii mil u IiuiK .4 bonis or with hairs on the sutures. Laminas broadh 13. succulent, elliptical to ovate lo suborbicular. the base often mm dm uiiiMit. glands 0.6 in diametet scssil on ih margin; I i I | mm 14.5 18.5 long; Guerrero, Puebla. G. miramiac Anders- ( .aminas chartaccous. ovate narrowly 13. oi eilipiical oi elliptical, the base acute, I mm glands 0.4-0.6 in diameter, raised abo\e Ihe margin or borne on the mm nob pe In els 5 5 10.5 long. I ANDERSON: G ALPHIMIA MEXICO IN 19 C. Bracteoles borne at or just below the apex of the peduncle just be- (i.e., . ]i.u the articulation): lamina: dliplu< al or narrowly so, with an apical tuft of hairs (best seen in younger leaves); peduncles 0.5-1 times as long as pi iitcrior styles longer than the posterior style; ovary glabrous; Is li< < ; calyx eglandular; Tamaulipas and Veracruz, and adjacent regions of Hidalgo, Puebla, Queretaro, and San Luis Potosi. C. gracilis Bartling Bracteoles borne near the middle of the peduncle, or one near the . middle and the other near the base; laminas ovate or lanceolate, without an apical tuft of hair; peduncles 0,2 0.6 times as long as the pedicels; on styles subequal; ovary glabrous or with hairs the sutures; calyx glands Guen present or absent o Jalisco Michoacan, Nayarit, Sinaloa, and southwestern Durango and Zacatecas. G. montana (Rose) Nied. ACKNOWLEDGMENTS thank William R. Anderson and Gordon McPherson for their advice and comments on the I am manuscript, and Karin Douthit for the handsome drawings. grateful to she curators of the following 1 nh MEXU. MBM, rmakin N( B IEB. b leibaii coll lion o, in liiablc to k i 1 t i MICH, MO, TEX, XAL. LITERATURE CITED Anderson, C. 1995. Revision of Thruilli.s Malpighiaceae). Contr. Uni ( complex (Malp 2003. Resolution of the .alphnnni Imwjassci ( . Mexico. Bot. 714-722. Syst. 24: Anderson, W. R. 1978 ["1977"]. Byrsonimoideae, a new subfamily of the Malpighiaceae. Leandra 5-1! 7: Cameron, K. M., M. W. Chase, W. R. Anderson, and H. G. Hills. 2001. Molecular systematics of Malpighia ceae: evidence from plastid rbcL and matK sequences. Amer. Bot. 88: 1847-1862. J. Castro. M. A., A. S.Vega, and M. E. Miilgura. 2001. Structure and ultrastructure of leaf and calyx glands i: m Calphimm (Milpolni Bo bin I" •., " '// ii i i » I » ' Davis. C. C, W. R. Anderson, and M. Donoghue. 2001. Phylogeny of Malpighiaceae: evidence from chic J. U uml, I'm 1830-1846. roplast tnliir.uMl il n< |n u iil S ' I i 1

See more

The list of books you might like

Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.