THE FERNS OF TRINIDAD. 99 
Cheilanthes radiata R. Br. A. grandifolium Swartz. 
Peeris litobrochioides Klotzsch. A. celtidifolium Mett. 
A 
. pungens Willd. . Shepherdii Spreng: 
ge. Ghadetaarien Retz. A. crenulatum Baker. 
P. podophylla Swartz. A. radicans Schk. 
P. inequalis (Fée). A. marginatum 
P. aculeata Swartz. Didymochlena lunulata Desv. 
P. gigantea  dnae Oleandra a Cav 
P. aquilina O. nodosa Pre 
— fencade Swartz, Nepheolpis pte Presl. 
B. Sos etaa H. BLK. Nepheodium subquinquefidum 
poe Baker. 
effusum Baker. 
conterminum Desv., var. 
Sprengelii Hook. 
falciculatum Desv. 
cultrifolium Ee var. 
salicifolium L 
auriculatum Swartz. deflexum J. Smith. 
] Seerneche tee Fée. 
olle Des 
brachyodon Hook, 
a Baker. 
macrophyllum Baker. 
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. Cleutarium Sheiet te. 
A. rhizophorum L. 
Nephrodium Sherringiz, n. sp.—Stipites erect, 2-8 ft. long, 
he 
‘ether slender, glossy brown, paleaceous at the base. Fronds 
ample, 14 ft. long or more and nearly as wide. Simply pinnate, 
Opposite pairs and a larg m , the lowest pair a foot 
ong, 3— ide above the base, ras to 14 in ang 
connected lanceolate-acuminate lobe the rae base 4- 
lon 1-2 in wide, and a smaller ‘tis on opposite sapane 
base; next pair of pinne ilar bu ee ae reduced ; 
pair sessile and unequally cordate at the base and devo basal 
lobes ; terminal pinn ilar to the inferior pair mary veins 
very copious, scattered over the whole under surface. Involucres 
Persistent, but curled up at maturity. ee collected by 
Mr. R. V. She erring, after whose wife, recently deceased, I have 
named it by request. This has the size and habit of macrophylium, 
but the pinne are fewer and the sori instead o g serial are 
sprinkled generally over the surface, a rare character in the 
American species of Sagenia. 
- Aspidium semicordatum A. abbreviatum Schrad. 
Swartz A. meniscioides Willd. 
A. aculeatam Swartz. : plantagineum Griseb. 
