106 
Larger than D. pubescens. Stipe rather strong, tomentose beneath, nearly glabrous 
upwards. Lamina decidedly deltoid, about 20 cm long and broad or broader, tri- 
pinnate at base, bipinnate—tripinnatifid at the middle. Basal pinne much the 
largest, up to 20 cm long, with their lower side much produced. Secondary pinnulz 
of middle pinnz on stalks 3—5 mm long, ovate-oblong, 2'/z—3'/2 cm long, 1—1!/2 
em broad, or still larger, submucronate, the larger ones sublobate or broadly ser- 
rated, the lobes oblique, subacute. Texture chartaceous, colour dark-green. Pubescence 
about as in D. pubescens, but gener- 
ally less dense; the long hairs of 
eg G rachis and surfaces are with age 
I AI (We We deciduous, while the secondary and 
WZ, Ay RW \e2 tertiary rachises beneath are densely 
ze 
ese Zo 
pubescent with short hairs; the deep 
furrows of the rachis and midribs 
of pinnz are filled with a dense, 
short pubescence. Under surface with- 
out glands. Mature sori 2 mm broad, 
the sporangia intermixed with some, 
deciduous long hairs. Indusium not 
seen, but probably it is present in 
young stages. 
In its general habit the typical 
form of this species is very different 
from D. pubescens, owing to its de- 
cidedly deltoid, dark-green lamina 
and its broad pinnule, but in most 
minute characters it scarcely differs. 
It is evidently a common fern in 
Porto Rico, and a very similar form 
occurs in Eastern Cuba, where it may 
be confounded with D. effusa var. 
Fig. 22. Lower half of a basal pinna of D.cherophylloides CONfinis, from which it differs clearly 
(Poir.) C. Chr., nat. size. in pubescence. 
bt 
q Me 
iP » 
> ehh Zi! eaweem 
<n N 
< “D> 
. 
Porto Rico: Eceers nr. 1340 (B, R, RB,W), Sinrenis_ nr. 435 (B, R, S, W), 435 b, 437 (B), 2013, 2112, 
2702 (B, W), 2849, 6033 b, 6065 b (B), 6537 (B, R); A. A. Hever nr. 4557(W); Mr. and Mrs, A. A. 
_HEtter nr, 883 (B,W); Hroram nr.119 (R, W): J. R. Jonnsron nr. 149 (W); Eis. G. Brirron 
and DeLia £ MarBLe nr. 638, 1082 (W); Gansex nr. 80.(B); L. Kaue nr. 1407 (B); J. GuNDLACH 
_ mr. 1375 (B); O. Kunrze nr. 429 (B). _ 
St. Croix, Benzon (H). 
Jamaica: St. Georges, Portland, W. Harris nr. 7488 (B) 
