188 136 
referred it. From D. serra it differs besides by size by the characteristic base of the 
lower pinnz, the lower basiscop segments being fully obsolete. The species is 
distributed over the the whole tropical America, but 
the specimens from different regions do not agree ex- 
actly with the West-Indian type. I can distinguish the 
following forms: 


1. typica. The common Jamaican form is marked 
by its very characteristic reddish lamina when dried 
and by its flesh-coloured indusia, it is often quite 
glabrous and glossy on the upperside, some specimens 
are very finely pubescent on the coste and veins be- 
neath; indusia glabrous or minutely pubescent. — With 
this form agree most specimens seen from other islands, still some of them, espe- 
cially those from Porto Rico, are scarcely different from the continental form. 

Fig. 25. D. oligophylla Maxon. 
Basal portion of a lower pinna, 
>< *]|s. 
St. Thomas: EccEns nr. 455d (B, C) — St. Kitts, Brirron and CoweE tt nr. 483 (W). 
Porto Rico: UnpERwoop and GnuicGs nr. 75 (W); Sinrenis nr. 411 (C, S, W), 2068 (iB, W), 2636 (B, W), 
4593 (C, W) — Haiti, Prcanpa nr. 1030 (C). 
Jamaica: Maxon nr. 1003 (W); O. Hansen (H); Wirsow nr. 682 (B); Harr nr. 201 (W); G. L. FisHER 
nr. 983 (R); UNpERwoop nr. 3249, 3301 (W). 
Cuba: WnmiauT nr.1003 (S) 3922 (S). Valley of Rio Bayamita, Maxon nr. 3920 (W) — Pinar del Rio, 
Mts. near Jaco Jaco, Baker nr. 3804 (W). 
2. var. pallescens C. Chr. n. var. 
Syn. Aspidium giganteum Moritz msc. non Bl. 
The continental form; differing from the type by the grey-green, coriaceous 
lamina and the pale or yellowish, more distinctly hairy indusia; rachis and ribs 
beneath more distinctly hairy and the costze beneath furnished with some small, 
ciliate, brown scales. It grows larger than the West-Indian form. Some of the 
smaller forms are scarcely to distinguish from JD. augescens var. puberula. 
Mexico: Angangueo, v. CHRISMAR (B). 
Costa Rica: Navarro, WERCKLÉ (C); La Lima, WEnckrÉ (C, CC) — Rio Corozal, Golfo Dulce, ToNDuz 
nr. 9978 — Donn. Smiru nr. 7214 (C, W) — Canas Gardas, Pirrier nr. 10964 (C, W) — 
Atirro, Donn. SmirH nr. 6900 (W) -— Santo Domingo de Golfo Dulce, ToNpuz nr. 10023 
(= Donn. SurrH nr. 7215) (C, W) — Rio Turrialba, Donn. SmirH nr. 6901 (W) — Meseta 
Central de San José, 2000 m, Arrano nr. 16902 (C, RB) — Veragua, WansEWiCZ nr. 47 (B). 
Panama: Maxow nr. 4993, 5763 (W). 
Colombia: Santa Marta, H. H. SwrrH nr. 2454 (C, Rg) — Ibaqué, Striper nr. 13 (B) — Tolima, 
ScHMIDTCHEN (B). 
Venezuela: Morirz nr. 424 (B, C, H), 412 (B). 
Ecuador: Balao, EccEns nr. 14660 (W); El Recreo, EcGEnRs nr. 15037 (W). : 
3. var. lutescens C. Chr. n. var. 
Smaller than the preceding variely, as a rule yellowish green; lower pinne 
less reduced towards the base. 
