aes 
‘ 
ee 
toothed, those of the costze beneath darker and more conspicuous than in D. villosa. 
Rachis and costz on both sides densely villous with longer and shorter hairs inter- 
mixed; both surfaces throughout (veins and leaf-tissue) densely long-hairy. Spores 
distinctly papillose. 
HIERONYMUS distinguishes between two forms: 
1. f. Spruceana Hieron. |. c. Sori 4—6 to each segment, the indusia large, 
pale-edged. 
2. f. Lehmanniana Hieron. |. ce. Sori 1—38 to each segment, the indusia smaller, 
concolorous. 
Other forms based on smaller differences in pubescence could be separated 
out, but with the comparatively few specimens at hand I find it advisable to point 
out only by which characters these andine forms differ from D. villosa. Further 
material will show, I guess, that D. andicola is an aggregation of several allied 
species. 
Colombia: Pacho, Cundinamarca, LEHMANN nr. 7369 (B); ee del oro, Cauca, LEHMANN nr. 7416 _ 
(B); Fusugasuga, Linen nr. 843 (B, Kew, RB), Karsten nr. 274 (B); Linnie nr. 159 (B. fragm.) 
Ecuador: Chimborazo, Spruce nr. 5225 (B); Tunguragua, Stipe nr. 852 (B); Avitagua, Stipe nr. 
896 (B); Quito, Soprro (B); LeHMann nr. 101 (CC); Canelos, Spruce nr. 5295 (CC). 
346. Dryopteris acrosora (Hieron.) C. Chr. Ind. 250. 1905. 
Syn, Neprodium acrosorum Hieron. Engl. Jahrb. 34: 446. 1904. 
Type from Colombia: in monte Cerro Pelado, leg. Sto s. n. (B!); without 
locality, leg. ScumipTcHEN (B!). 
Remarkable by the sori being confined to the upper third or fourth of the 
segments, 3—5 together, very close. If this character is a constant one, as it appears, 
the species is easily recognizable; as to most other characters it agrees with D. villosa 
and its allies, still it differs somewhat in pubescence: the whole leaf is beneath 
finely downy, most densely so on the midribs, without or with comparatively few 
long hairs: upperside throughout, chiefly on midribs and veins strigose by longer 
hairs. Rachis, cost and costule beneath more or less paleaceous by lanceolate, 
entire, fuscous scales. Indusia large, persistent, reddish-brown, glabrous or with some 
few long hairs at the centre. — The Costa-Rican specimens have several long hairs 
beneath, which are lacking in the original specimens, but otherwise they agree. 
Colombia: ScumipTcHEN (B), STiBeEt (B). 
Costa Rica: La Hondura, Wercklé (RB, W): ibid. (La Palma), O. Jimenez nr. 603 (RB, W); La Palma, 
A. & C. Brave nr. 349 — Ros. Fil. exs. costarr. nr. 156 (B, R, Rg). 
347. Dryopteris villosula n. sp. 
Syn. Dryopteris villosa inaequalis Gilbert, Bull. Torr. Cl. 24: 259. 1897. 
Type from Bolivia, leg. M. Bane nr. 2394 (B, W). 
D. K. D. Vidensk. Selsk. Skr., naturvidensk. og mathem. Afd. 8. Reekke, VI. 1. i i2 
