BRITTON: FERN COLLECTING IN CUBA 77 
Bahamas, occurs here too on trees, and C. costatum is not 
uncommon. C. angustifolium hangs down from the 
trees in dense clusters like a Vittaria, which genus it re- 
sembles when curled up and dried. Among the bushes 
on the banks or drooping over the water, the taller species 
of Dryopteris, such as D. oligophylla Maxon and D. patens 
are sure to be found, and D. parasitica (Aspidium molle) 
also is rather common. Various species of Tectaria may 
be looked for here also; 7. heracleifolia attains a large 
size at the Falls of the Hanabanilla, and all forms and 
sizes may be found in the various arroyos, from the 
young plants with small simple leaves, two to three inches 
long, to leaves two to three feet high, and variously lobed 
or with ragged incisions. T. martinicensis occurs | 
the banks of rivers and in beds of rocky streams near 
Guanabana and Siguanea. T. coriandrifolia (Sw.) Und. 
is rarer, and occurs in crevices — nies of wet rocks in 
dense woods. 
Two species of Blechnum are more or ver consi: > . 
B. serrulatum growing among grasses, with Pteridium 
caudatum on the sunny summit of a hill 900 meters high, Pee 
was rather surprising, especially as we usually find it in — 
damp, shady places under palms on the borders of 
lagoons and streams. B. occidentale i is perhaps quite as es 
common in ravines and along streams in various parts 
of the island. | Olfersia cervina Kze. with its very ty 15 
