New names, a new combination, and a new species of Psychotria (Rubiaceae: Psychotrieae) from São Paulo State, Brazil

3 Pages·1999·1.8 MB·English

by  C M Taylor

New Names, a New Combination, and a New Species of Psychotria
(Rubiaceae: Psychotrieae) from Sao Paulo State, Brazil
Charlotte M. Taylor
Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299, U.S.A.
Abstract. The new species Psychotria leitana C. Haec species a Psychotria nemorosa Gardner stipulis
M. Taylor is described, the combination Psychotria elobatis, pedunculo 4—20 mm longo. panicula 1—3.5 cm
longa. pedicellis sub anthesi usque ad 1 mm longis atque
subspathulata (Mueller Argoviensis) C. M. Taylor is
tubo corollino 3.5-4 mm longo distinguitur.
made based on Mapouria subspathulata Mueller
Argoviensis, and the new names Psychotria ararum Shrubs or small trees flowering at 1 m bill, to 3 m
C. M. Taylor, for Palicourea glaziovii Standley, and tall; stems flattened becoming subterete, glabrous or
Psychotria setulifera C. M. Taylor, for Palicourea densely puberulous to short-pilosulous. Leaves with
hispidula Standley, are provided. blades elliptic, 7-13 cm long, 2.2-5.5 cm wide, at
apex acuminate with slender tips 1-1.5 cm long, at
During study of Psychotria L. (Rubiaceae: Psy-
base cuneate to obtuse, papyraceous to thinly so, on
chotrieae) for the “Phanerogamic Flora of Sao Paulo
adaxial face glabrous, on abaxial face densely puber¬
State” project, the following new species and no-
ulous to short-pilosulous; secondary veins 1—8 pairs,
menclatural needs were discovered. The subgeneric
classification of Psychotria and its separation from looping to clearly interconnect near margins, with 2—
Palicourea Aublet have been outlined previously 4 rather weak intersecondary veins present between
(Taylor, 1996). Standley s reason for naming Pali¬ pairs of secondary veins, without domatia, on adaxial
courea glaziovii Standley and Palicourea hispidula lace venation plane, on abaxial face costa, secondary
Standley in Palicourea rather than Psychotria is not veins, and reticulated minor venation all prominulous;
clear, except he noted that the corollas in bud were margins entire; petioles 5-12 mm long, glabrous to
rather enlarged at the base. He also noted that no densely puberulous or short-pilosulous; stipules per¬
other characteristics of the corollas of these species sistent, glabrous or densely puberulous to short-pilo¬
were evident; with better material now available, sulous, united around the stem into a continuous
the corollas of both species can be seen to lack sheath, this entire, 0.8-2.5 mm long, truncate to
both the swollen base and the internal ring of pu¬ broadly rounded, with age becoming indurate and oc¬
bescence near this base that distinguish Palicou¬ casionally splitting into two deltoid lobes. Inflores¬
rea. Within Psychotria, these species belong to sub¬ cences densely puberulous to short-pilosulous, termi¬
genus Heteropsychotria Steyermark. nal, peduncles 4—20 mm long, sometimes articulated
with the articulation bearing a reduced leafless stipule
Psychotria ararum C. M. Taylor, nom. nov. Re¬
that terminates a basal intemode 3—5 mm long; pan¬
placed name: Palicourea glaziovii Standley,
icles corymbiform-rounded to depressed-corymbiform
Publ. Field Columbian Mus., Bot. Ser. 8: 217.
and nearly flat-topped, 1-3.5 X 2-8 cm, with sec¬
1930, not Psychotria glaziovii Mueller Argo¬
ondary axes 2-A pairs, often subverticillate or irreg¬
viensis, in Martius, FI. bras. 6(5): 267. 1881.
ularly distributed along the primary axis, dichoto-
TYPE: Brazil. Rio de Janeiro: Serra das Ar-
mously branched 1—2 times with the resulting minor
aras, 1888, A. Glaziou 17033 (holotype, B de¬
axes becoming rather secund; bracts lacking or nar¬
stroyed; isotypes, BR, P not seen, fragment F-
rowly triangular, to 0.8 mm long, and rather irregu¬
970563).
larly distributed, never present at junction of second¬
This species is now also known from the Atlantic
ary axes; fl<ywers sessile or with pedicels to 1 mm long,
coastal forest in southeastern Sao Paulo State and
borne in open cymules of 5-11; hypanthium eupuli-
may be expected in the region between there and
form to cylindrical, densely puberulous; calyx limb
the type locality.
densely puberulous, 0.5-0.8 mm long, lobed for 14-
Psychotria leitana C. M. Taylor, sp. nov. TYPE: 14, lobes deltoid to rounded; corolla infundibuliform,
Brazil. Sao Paulo: mpio. de Ubatuba, Picin- cream-colored, externally densely puberulous becom¬
guaba, Trilha do Morro do Corsario, 26 Aug. ing glabrescent at anthesis, tube 3.5—4 mm long, ea.
1991. R. Romero & N. Roque 354 (holotype, 1.2 mm diam. near middle, lobes 4—5. triangular, ca.
IAC 34744; isotype, HRCB). Figure 1. 1.5 mm long, ac ute. Infructescences similar to inflo-
Novon 9; 260-262. 1999.
Volume 9, Number 2 Taylor 261
1999 Psychotria from Brazil
Figure 1. Psychotria leitana C. M. Taylor. —A. Flowering branch; based on de Assis et al. 348 (UEC). —B. Stipule.
—C. Flower. B, C. based on Tamashiro et al. 18738 (UEC).
rescences except pedicels becoming up to 2 mm long; cinguaba, Estrada da Casa da Farinba, Furlan el al. 627
(HRCB). 779 (HRCB), Garcia et al. 140 (HRCB), Ribeiro
fruits broadly ovoid, 3.5-4 X 6 mm, becoming purple,
et al. 476 (1AC). Romero et al. 93 (HRCB); mpio. Ubatuba,
laterally flattened; pyrenes 2, with 3—5 planar angles
Picinguaba, Trilha do Morro do Corsario em direyao ao
or weak, rounded, longitudinal ridges. mangue, Ribeiro et al. 439 (IAC); mpio. Ubatuba. 20 Jan.
1997, Gajardo s.n. (I AC-34737). 17 Feb. 1997. Gajardo
Southeastern Brazil (Sao Paulo State), in pluvial s.n. (IAC-34738).
Atlantic coastal forest. Collected in flower in Feb¬
ruary. March, August, and October, in fruit in Jan¬ Psychotria setulifera C. M. Taylor, nom. nov. Re¬
uary, February, September, and November. placed name: Palicourea hispidula Standley,
This new species belongs to subgenus Heterop- Field Mus. Nat. Hist., Bot. Ser. 11: 227. 1936,
sychotria and is distinguished by its unlobed stip¬ not Psychotria hispidula Standley ex Steyer-
ule sheath, leaves with the venation reticulated and mark, Acta Bot. Venez. 4: 97. 1964. TYPE;
prominulous on the abaxial surfaces, corymbiform Brazil. Rio de Janeiro: Environs de Rio de Ja¬
inflorescences with the branches becoming rather neiro et D’Ouro Preto, 1883—1884, A. Glaziou
secund especially as the fruits develop, sessile to 14900 [holotype, K not seen, photo (F neg.
shortly pedicellate flowers, and funnelform corollas #49916) F],
with tubes 3.5—4 mm long. Psychotria leitana has
been confused with P. nemorosa Gardner; the latter This species was apparently combined with Psy¬
species can be distinguished by its stipules with a chotria leiocarpa Chamisso & Schlechtendal by
truncate sheath bearing clearly developed triangu¬ Mueller. These species can be distinguished by
lar lobes, inflorescences with peduncles 1.5—3 cm their pedicels, 1.5—7 mm long in P. leiocarpa vs.
long, panicles 4—10 X 4.5—15 cm, pedicels 1—5 2—10 mm long in P. setulifera. The minor venation
mm long, and corollas with tubes 5—8 mm long. on the abaxial leaf surface is hardly evident and
The specific epithet honors the late Hermogenes plane in P. leiocarpa but is clearly evident, closely
Leitao, a productive collector and student of Sao reticulated, and prominulous in P. setulifera.
Paulo State’s unusual flora.
Psychotria suhspathulata (Mueller Argoviensis)
Paratypes. BRAZIL. Sao Paulo: mpio. Bertioga, es- C. M. Taylor, comb. nov. Basionym: Mapouria
trada Bertioga-Mogi das Cruzes, Tamashiro et al. 18738
subspathulata Mueller Argoviensis, Flora
(UFC); mpio. Iguape, Estayao Eeologica Jureia-ltatins,
Serra da Jureia. trilfia para a Figueira Grande, Anuncia^ao 59(29): 465. 1876. TYPE: Brazil. Rio de Ja¬
& Rossi 374 (MO, SP); mpio. Iguape, Esta<;ao Eeologica neiro: prope Macahe, Riedel 635 (lectotype,
Jureia-ltatins, Serra da Jureia. trilha em diregao a Eazenda designated here, LE not seen; isotype, B de¬
do rio Verde, Anunciayao et al 633 (MO, SP); mpio. Uba-
stroyed, photo (Rockefeller neg. #437) MO).
tuba, Estrada de Itamambuca, Km 35 da Rodovia Rio/
SYNTYPE: Brazil. Sao Paulo: Ytii, Riedel s.n.
Santos. ,4.s.s/x et al. 348 (HRCB); IIha de Sao Sebastiao,
23°18'S. 46°57'W, Collares 13 (RB); mpio. Ubatuba. Pi- (not located).
262 Novon
As the genera of Psychotrieae are currently cir¬ scientific collaboration and logistical help; R. E.
cumscribed, Mapouria is a synonym of Psychotria Gereau and J. H. Kirkbride, Jr., for very helpful
subg. Psychotria (Taylor, 1996). The lectotype des¬ comments on the manuscript; and R. E. Gereau for
ignated here is chosen over the other syntype be¬ preparation of the Latin diagnosis. This work is part
cause of the wide availability of a photo and its of the “Phanerogamic Flora of Sao Paulo State”
designation With a collection number. project, under the coordination of Maria das Gramas
Lapa Wanderley of the Institute Botanico, Sao Pau¬
Acknowledgments. 1 thank the curators ol F,
lo, and was very kindly supported in part by FA-
HRCB, IAC, SP, SPF, R, RB, and UEC for access
PESP (Fundagao de Amparo h Pesquisa do Estado
to specimens; the coordinator of the Rubiaceae for
de Sao Paulo).
the “Phanerogamic Flora of Sao Paulo State,” Sig-
rid Luiza Jung Menda^olli, the staff and the stu¬
dents at IAC, UEC, and SP. and especially Elisette Literature Cited
Araujo da Anunciagao (SP), Alice Correa (SP), and
Taylor, C. M. 1996. Overview of the Psychotrieae (Rubi¬
Rosely Buzanelli Torres (IAC), for their generous aceae) in the Neotropics. Opera Bot. Belg. 7: 261-270.