Table Of Content

RHODOR.\, Vol. 97, No. 889, 9-38, 1995 pp. TO THE ADDITIONS PRELIMINARY CHECKLIST OF VASCULAR FLORA OF CONNECTICUT Merhoff Leslie J. ABSTRACT Forty-six native or naturalized species, varieties, or liybrids are reported as additions to Dovvhan's Preliminary Checklist of the Vascular Flora of Connecticut These represent 21 native taxa and 25 apparently naturalized taxa. Fach taxon is presented with a brief history of discovery in Connecticut. Dates are presented its known for the earliest voucher specimen for each addition. Key words: Connecticut, flora, vascular plants, additions The following o[ taxa represents additions to the non- list cultivated flora of Connecticut that have been discovered since PRELIMINARY CHECKLIST OF the publication of the THE VASCULAR FLORA OF CONNECTICUT (Dowhan Most new 1979). are discoveries although the recent annota- some tion of specimens collected prior to 1979 accounts for new some were of the records. In cases taxa considered here not included in regional floristic treatments such as Fernald Seymour Gleason and Cronquist (1950), (1969), or (1963, Some 1991). taxa appear to be adventive and remains to be it whether become Con- seen or not these will established in necticut 41 species, 2 varieties, and 3 naturally occurring hybrids in 29 families are reported. 21 taxa appear to be native while the remaining 25 appear to be non-native or ruderal taxa and One new should be considered adventive as or naturalized. Hymenophyllaceae, added family, the to the flora. (Six taxa is Endangered and Concern Spe- are listed as three as Special cies on the Connecticut of Endangered, Threatened, or list Special Concern Species (Department of Environmental 9 Rhodora 10 [Vol.97 34 Protection 1993). records are from recent disco\cries and 12 records represent additions due to re\'isionary reevalua- tions. seems prudent to follow the family order as presented It in Taxa Dovv'han (1979). within families are alphabetized by and genus, those within genera are alphabetized by species. However, names familial used here all end in -aceae, alterna- names tive being used for the sake of consistency certain in families. Nomenclature follows the Flora of North America (Floraof North America Committee Editorial 1993) forpteri- dophytes and Gleason and Cronquist (1991) for angiosperms. A specimen end single cited at the of the discussion for is each taxon. Citations arc for the earliest voucher specimen known No made to me. attempt has been to include multiple vouchers tYom where may different herbaria duplicates have am many been deposited, although aware These exist. I CONN, MASS, GH, records represent collections deposited at NCBS, NEBC, NYS, andYU (Holmgren et 1990). al. comes Distributional information from Flora of North America, Volume America Com- 2 (Flora of North Editorial mittee 1993) for pteridophytes and Gleason and Cronquist A angiosperms (1991) for unless otherwise noted. table sum- map marizing and showing additions a Connecticut's 8 all counties are included. . LYCOPODIACEAE Lycopodiella alopeciiroides (L.) Cianfill Club-moss Foxtail was This taxon originally reported Lycopodiitm as Edwin Fames New by alopeciiroides L. H. from Mil ford, Haven County Fames in 1908. also collected/., alopeciiroides M 1995 ehrhoff Connecticut 11 Map Town Figure of Connecticut showing County and Boundaries. 1. The specime- County. correct identification of the Fairfield in Dowhan mens had been questioned by Joseph and others. work Warren Revisionary by Joseph and H. the late Beitel Wagner, has confirmed Fames' detemiination. This original Jr. synonym Lycopodium under aJopecuroides species, the L. is (DEP Concern Connecticut listed as a Species of Special in 1993). Rhode Texas and Louisiana, north Island Distribution: to and Massachusetts, mostly on coastal plain but inland to western North Carolina and northern Georgia. SEP Fames (CONN)] 26 1908, H. E. .v. //. [ Rhodora 12 97 [Vol. Lycopodiella xcopelandii (Eiger) Cranfill. [Lycopodiell & alopeciiwides x adpressa (Lloyd Underw, (L.) Cranfill L. Bog Hybrid Club Cranfill] pecimens were annotated as hybrid by Florence Wagner and Warren H. Wagner, These S. Jr. New records were from Haven, and Middlesex Fairfield, my The Counties. Joseph had late Beitel called attention a to (CONN) collection the G. Safford Torrey Herbarium from in Simsbury, Hartford County, of a Lycopodiella which he determined to be L. xcopelandii. Subsequent evaluation of ma- from herbarium specimen which terial that did not yield a the Wagners comfortable assigning hybrid felt in to this taxon. Distribution: This taxon can be expected anywhere within the range of either parent species. AUG Fames (CONN)] [30 1907, E. H. 5. //. SELAGINELLACEAE Meadow SeUiginella eclipes Buck. Buck's Spike-moss common This spike-moss confused with the Selaginella is apoda may Spring and have been overlooked (L.) in the north- east. In 1982 Terry R. Webster found specimens determined apoda as collected western Connecticut which matched 5. in Buck's (Buck Numerous description of this species 1977). calcareous localities in western Connecticut have yielded whose morphologies plants are intermediate between S. and eclipes apoda, adding S. to the confusion surrounding we Specimens, which taxon. this identified eclipes, taken as.S'. from the floor of an abandoned limestone quarry have re- New cently been confirmed by Ivan A. Valdespino York the at Botanical Garden. Shortly specimens after collecting these from the quarry floor, the quarry was reactivated for pro- now cessing marble. appears have been abandoned to It Mehrhoff-Connecticut 1995] 13 Any again and should be specimen from calcare- revisited. ous and growing sun presumed be apoda areas in full to S. more should be given than a cursory glance. Distribution: Western Quebec and eastern Ontario south New Oklahoma through western York and Arkansas. to APR Mehrhoff with Webster [26 1983, L. 7546, T. R. J. (CONN)] OSMUNDACEAE Osmiinda Tryon [Osmunda xniggii claytoniana L. x O. re- Gray] galis L. var. spectabilis (Willd.) Royal Fern Interrupted was This ver}' rare hybrid first collected in Wilton, Fairfield The by Leonard County, Connecticut 193 Bradley. type in 1 J. way came specimen from a garden in Hartford, by of the gar- New Rugg Dartmouth den of Dr. Harold G. of College in Hampshire (Tryon The Wilton appears 1940). collection last known be from 1938. not currendy be extant to to in It is Connecticut. County, Connecticut and Craig Distribution: Fairfield County, Virginia. JUN Bradley (GH)] [14 1931, L. J. s. n. HYMENOPHYLLACEAE Trichomanes Appalachian Trichomanes intricatiim Farrar. The species name Trichomanes iutricatum Farrar has only gameto- recently been published (Farrar 1992) although the known phyte has been for several years (Fan"ar et 1983). al. This fern gametophytc, which apparently never produces a sporophyte, was reported from Kent and Norfolk, Litchfield and County 1983 by Donald James Parks, in R. Farrar, C. 14 Rhodora 97 Vol. Bruce W. McAlpin al Gamclophylic (Farrar cV 1983). planls me of Tricliotnanes intricatuni, once described by Rolla to Tryon as "resembling green wool" can be steel easily o\er- lookcd. has recently been found Hartland, It in Flartford County and should be looked for in other areas. a Spe- It is Concern cies of Special Connecticut, Trichowanes in listed as (DEP 1993). sp. New Vermont and Hampshire Distribution: Central south along Appalachian Alabama the uplands and to Georgia, disjunct in southern Illinois and Indiana and western Ken tuckv. SEP [30 1991, L. Mehrhoff 15299, with M. Ardw J. in, J. (CONN)] and Barrett, N. Proctor PTERIDACEAE Kuhn PelUiea gUibelUi Melt, ex subsp. glabella Smooth Cliff-brake The smooth was Cliff-brake reported from Connecticut first 1988 from in a single calcareous outcrop Salisbury, in Litchfield County by Karen Hansen and Robert S. E. The Schneider. population seems to be well established as many there are individuals in the population. listed as an It is Endangered (DEP Species Connecticut in 1993). Vermont Distribution: to Minnesota and south Tennes- to see, Virginia, and w estern Maryland. JUN Hansen [27 1988, K. and Schneider 241 S. R. E. (CONN)] ALISMATACEAE Echinodoriis /^«<?///«'(Mart.)Buchenau Burhead was This small aquatic reported Connecticut from first in a MchrhoS-Connecticul 15 1995] pond margin Glastonbuiy, Hartford County 1989 by in in No William Moorhead. individuals o{ Echinodonis were ob- subsequent This not ser\cd station for three years. at this is A comm.). atypical for taxon (C. B. Hellquist pers. small this number Echinodorus were seen o[ plants of at this site in Numerous 1993 Mctzler comm.). plants llower (K. pers. in J. and were obser\ed 1994. This appears to be the only fruit in New Endangered England an extant population. listed as It is (DEP Connecticut Species 1993). in America Tropical north along the Atlantic Distribution; Coast Massachusetts, up the Mississippi River irregularly to Kentucky and Kansas. Missouri, occasional!} to Illinois, AUG (CONN)] 89001 [18 1989, K. Met/.lcr J. HYDROCHARITACEAE Egeria dens a Planch. commonly grown Egeria This aquatic species in aquaria. is was Westport, densa introduced, apparently intentionally, in County where has persisted. also has been oc- Fairfield It it Vermont (Crow and Massachusetts introduced casionally in watched elsewhere and Hellquist 1982). should be for in It New England. might be confused with species of southern It Elodea. Na United Occasional northeastern States. Distribution: in of South America, from southeastern Brazil to nc^lh- live em Argentina. AUG P (CONN)] Aarrestad 1992, [20 n. s. POACEAE Aira praecox L. was from Norwich, This European Hairgrass reported first Rliodora 97 16 [V)l . New County The was Lc^ndon 1992. population in es- \\'c\\ tablished in sandy soils of a "jug-handle" at the junction of Routes 2 and Interstate 1-395. was not noticed at this site in It A when made 1982 were same collections in the locality. sec- ond ramp found near an station \\'as exit off the interstate in New Old Lyme, London County 1994. in Distribution: Eastern Connecticut to Virginia, usually near the coast. Native of Europe. JUN Mehrhoff 75678 (CONN)] [12 1992, L. J. vimineum Camus Microstegiiun A. (Trin.) The precise history of species Connecticut some- this in is Brown what comm.) unclear. Ljiuren (pers. observed this spe- New Haven County Branford, 1980s cies in the early but in apparendy no specimens were 1990 taken. In a population of was Haddam, species obser\ed East Middlesex County this in name Hcndrickson and under T. collected the Eulalia By viminea (Trin.) Ktze. 1991 appeared to be well estab- it New numerous London (W. Dreyer lished at sites in pers. comm.) and Counties and Fairfield single both at sites in Hartford and Litchfield Counties. Tolland County specimens are from unwanted volunteers, probably from fruits falling New from was Jersey material while being pressed. (Re- it made peated attempts have been to eradicate this species at The North American collection o{ Microstegiiun this site.) first vimineum was made 1919 Knoxville, Tennessee in in New and Gray was (Fairbrothers 1972). collected It first in 1959 and Gray Jersey in (Fairbrothers 1972). This in\asi\'e now many New grass well established areas northern is in in New Jersey, Pennsylvania, and southeastern York (Hunt and Zaremba 1992; pers. obs.). occurs along roadsides, in allu- It vial woods, on serpentine barrens, and ruderal habitats and can form extensive stands exclusion of almost to the e\ er\' \ MchrhoS-Conneclicut 17 1995] thing This species should be closely monitored and con- else. possible. trolled if at all New York Na- and southward. Connecticut Distribution: tive of tropical Asia. SEP (NCBS)] Hendrickson [19 1990, T. //. .v. & Panicum amarulumA. Chase Hitchc. Panicum amarulum was taken Connecticut from a in first m known County roadside Hebron, Tolland 1983. also in It is New may amarulum Haven from North Haven, County. P. have been originally introduced as an ornamental or acciden- introduced with roadside plantings or seeding at these tally now spreading and appears be well established. to sites. It is New Panicum amarulum not thought be native north of to is Cod from Cape thought Massachusetts records are to Jersey. Some be introductions (B. pers. comm.). treated here as It is amarum Panicum from distinct Ell. New Mexico, occasionally inland Jersey in Distribution: to North Carolina and West Virginia. SEP (CONN)] Mehrhoff 9240 [12 1983, L. J. Panicum scabriusculiim Elliott was Panicum acuJeatum This species originally collected as & JUN County on Chase Tolland 21 1911 Hitchc. in Stafford, A was by Charles H. Bissell. specimen from this collection Dowhan determined be Panicum aculeatum by Joseph not to J. A was discovered the duplicate collection later at (1979). Smithsonian (US) had been annotated as Institution that & Gould by Dichanthelium scabriusculum Clark the (Elliott) A Panicum Gould and C. A. Clark. recent specimen of C. late F. New London was Voluntown, scabriusculum collected in County, 1989 by William Crins. This species in is list- J. Endangered undQY Dichanthelium scabriusculum an ed as 18 Rhodora 97 [\61. m (DEP Species Connccticul 1993). New Distribution: Connecticut and Jersey and Florida to Texas. JUN W. [13 1989, Crins 7628 (NYS)] J. Vulpia myuriis Fescue Rat-tail Vulpia myuriis was two km collected at sites less than 1 from each Long other near Sound Island in Fairfield, Fairfield JUL County on 28 Both 1992. were open, sandy sites disturb- One ed was areas. site along a path to Long Island Sound and was the other adjacent to a gravel parking area remo\ed om fi The the coast, were spikelets disarticulating at the time of collection, specimens from other localities should be sought an at earlier date. Distribution: Widespread. Native of Europe. JUL Mehrhoff [28 1992, L. 75979, with W. Brumback J. E. (CONN)] CYPERACEAE Carex backii Boott Vegetative material, thought be Carex was to backii, collected on marble a ridge Canaan, County in Litchfield by Thomas Rawinski 1988. Thompson, in In 1992, Elizabeth reportedly unaware of Rawinski ma- find, collected 's fertile of from same terial C. backii the calcareous seems ridge. It reasonable, Thompson's o^ in light assume collection, to nski's specimen's belong of apparent rarity in the state, this species should be considered on for inclusion Connecticut's of protected list species. New Quebec Distnbution: to Jersey, west across Minne- to Utah, Oregon, and sota, Columbia. British