()LJ)i:i; I'OIOMAC OF VIlMilMA AND MARYLAND. 4i)l 



(i. Two specimens were eolleeteil on .lune '_':!, lS!Mi, from tlie Wliite House Blull' 

 locality l)y Jjcster V . Waiii and Cliarlcs Louis Pollard. 



From ;ill tliesp colloclioiis the following species li;iv(> lieen (i(>tei'iHine(l : 



Antholitlies (iaudium-Rosa' AVard 15 s])eeimens. 



Aj-alia ? vernonensis Font. n. sp _ _ 1 specimen. 



.-Vi-istolochia^phyllum '. cellulare Ward n. sp _ 2 specimens. 



Baieropsis dent ieulat a aniiustii'olia F\)nt 2 sjiecimens. 



Casuai'ina Covillei Ward _ 1 specimen. 



Celastroitliyllum Brittonianum ]lnlli<>k_ I specimen. 



Celastrophyllum Ilunteri Ward 2 s])ecimens. 



Celastro])liyllum ( salicil'orme AVard n.sp._ _ 1 sjiecimen. 



Cladophlehis rolundata F\)nt 1 s|)ecimen. 



Dryopteris virjiiniea (Font.) Kn _ 1 specimens. 



F]])liedrites '. vei-nonensis F^ont. n. sp 1 specinu'ii. 



Fic(>|)liyllum crassinerve Font. ? _ ...__.... 1 specinien. 



(ily])tt)strol)Us (Taxodium) brookensis (Font.) Ward '.) specimens. 



Leplostrobus lonjiil'olius Font 'A specimens. 



Menis|)onnitcs tenuinervis F'ont . 31 specimens. 



Menispcrmites virginiensis Font _ 27 specimens. 



Nageiopsis angustifolia Font 1 specimen. 



Nagei()))sis longifolia Font. ? 1 specimen. 



Pinus \('rnonensis Ward n. sp :! sjiecimens. 



Populo|)hyllum menisjx'rmoides Ward . 24 s])ecimens. 



Popidoi)hylliim mimitum Ward n. sp . 1 specimen. 



Populus auriculata Ward . _ . . 9 specimens. 



Populus potomacensis Ward 22 specimens. 



Potamogetophyllum vernonense Font. n. sp 1 specimen. 



Protea'phyllum reniforme Font- . _. . 20 specimens. 



Rogersia angustifolia Font 4 specimens. 



Sagittaria Victor-Masoni Ward 1 .specimen. 



Scleroptoris vernonensis Ward . L') specimens. 



Sphenolepidium Stcrnbergianum densifolium Font (i specimens. 



Spheiiopteris grevillioides Heer 7 sjiecimens. 



Sphenoptcris latiloba Font _ 1 s])ecimen. 



Sterculia elegans F^ont. ( 1 specimen. 



Thinnl'cldia variabilis Font __ 2 specimens. 



Tliyrsopteris bella Font 2 specimens. 



ThjTSopteris decurrens Font. ? 2 specimens. 



Tliyrsopteris rarinervis Font _ _ _ (i specimens. 



Zamia W^ashingtoniana Ward.. _ 11 specimens. 



