102 50 
var. eriocaulis (Fée) C. Chr. comb. nov. 
Syn. Aspidium eriocaulon Fée, Cr. vasc. Br. 1: 136 tab. 4 fig. 1. 1869. 
Nephrodium eriocaulon Bak. Syn. 495. 1874. 
Dryopteris eriocaulis O. Ktze. Rev. 2: 812. 1891; C. Chr. Ind. 263. 
Nephrodium ramentaceum Bak. Fl. bras. 1*: 473. 1870. 
Type specimen of D. cirrhosa from Guinea, tropical West Africa, leg. 
THONNING (H!), of var. eriocaulis from Brazil, leg. GrAziou nr. 2369 (H, Herb. 
Cosson, Paris!). 
This is the only species of the whole subgenus, which I do not hesitate to 
unite with an Old-World's species; the very handsome Brazilian D. eriocaulis is 
nearly quite identical with the African D. cirrhosa; I see no other differences than 
the African form being less scaly and having more acute segments and smaller sori; 
in shape of scales, pubescence, texture, position of sori etc. the two forms quite 
agree. 
The South-American form var. eriocaulis is very constant and the most beauti- 
ful and well-marked form of the whole subgenus; its essential characters are the 
following: 
Stipe beneath with a tuft of scales, upwards like rachis very densily clothed 
with red-yellow, patent or often characteristically reflexed, entire, hairpointed scales. 
Lamina in size equal to D. ctenitis and D. Anniesii, shortly hairy throughout on 
both surfaces, beneath also glandulose; coste beneath densily clothed with red 
scales, which generally stand at open angles to the costa and narrow from a sub- 
bullate base rather suddenly into a long narrow point with revolute but quite 
entire edges (fig. 3°). Segments oblique or subpatent, obtuse or subacute, often 
faintly toothed, 4'/»—5 mm broad. Veins 10—12. Sori inframedial or almost 
medial, furnished with a persistent, red indusium, which is shortly hairy and 
sparsely glandulose. 
Brasilia: Parahyba, Gorxpr (C) — Rio, Graziou nr. 2369 (H), Sellow (B), LENonMAND (B) — Sao 
Paulo: Bella vista ad flumen Rio Pardo, WrtTrsTEIN u. SCHIFFNER 1901 (C, Hb. Wien) — 
Rio Tieté, GERDER nr. 80 (R). 
Paraguay: HassLEm (C). 
Besides these specimens I have seen numerous others originating from plants 
cultivated in Berlin 1862 and Kew 1868 under the names Lastrea vestita J. Sm. and 
L. vulpina Kl., which latter very proper name has not been published. 
41. Dryopteris nigrovenia (Christ) C. Chr. Ind. 279. 1905 — Fig. 9a. 
Syn. Nephrodium nigrovenium Christ, Bot. Gaz. 20: 545. 1895. 
Aspidium setosum Kl. Linn. 20: 371. 1847 (description; non Sw.). 
Aspidium deltoideum Fourn. Mex. pl. 1: 93. 1872 (non Sv .). 
Type from Honduras: San Pedro Sula, Depart. Santa Barbara, 1000', leg. 
TürgME, ed. DoNNELL SurrH nr. 5646 (WI, C). 
