VoL. 29 - No. 10 
BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
OCTOBER, 1902 
Notes on a Collection of Guban Pteridophyta, with Descriptions of four 
new Species 
By Lucien M. UNpERWooD AND WILLIAM R. Maxon 
Early in the present year a party consisting of Messrs. Charles 
Louis Pollard and William Palmer of the United States National 
Museum, and Dr. Edward Palmer left Washington on a brief col- 
lecting expedition to eastern Cuba. Out of some 425 numbers of 
Plants secured no less than 144 are Pteridophyta. These have 
been placed in our hands for determination. In the following 
fhotes four species — one in each of the genera A/sophila, Polypo- 
dium, Asplenium, and Diplazium — are described as new. Several 
Others, mentioned below as probably undescribed, we have not 
Cared to diagnose at the present time on account of insufficient or 
Sterile material. The other notes are in the nature of comments 
On rare species and unusual forms or in explanation of nomencla- 
torial confusion. 
: Alsophila gracilis sp. nov. 
_ Stipes elongate, slender, deeply triple-grooved on the anterior 
ace, about 7 mm. in the greatest diameter, pale brown, densely 
armed with short spines; pinnae 30-35 cm. long with 14-16 pairs 
of deeply pinnatifid pinnae, the lowest 1-2 cm. from the main 
ichis ; pinnules 6—8 cm. long, 1.5-1.7 cm. wide, formed of about 
,. 13 segments on either side; lower pinnules on short stalks 
(5 mm. or less) which diminish upward so that the uppermost 
Pinnules are sessile ; segments oblong-falcate, coriaceous, smooth 
"fn both sides, the margins crenate, incurved ; the apex attenuate 
and crenate ; veins mostly once-forked, bearing the globular sori 
hear the middle. 
_ The species is founded upon sheets no. 403248 and no. 
3247 in the U. S. National herbarium, representing no. 255 
31 October] 577 
