102 50 



var. eriocaulis (Fée) C. Chr. comb. nov. 



Syn. Aspidiiiin eriocaulon Fée. Cr. vase. Br. 1: 136 tab. 4 fig. 1. 1869. 

 Nephrodinm eriocaulon Bak. Syn. 495. 1874. 



Dryopteris eriocaulis O. Ktze. Rev. 3: 812. 1891; C. Chr. Ind. 263. 

 Nephrodium ramentaceum Bak. Fl. bras. 1": 473. 1870. 



Ty pe specimen of Z). cirrhosa from Guinea, tropical West Africa, leg. 

 Thonning (H!), of var. eriocaulis from Brazil, leg. Glazigu 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. cienitis and D. Anniesii, shortly hairy throughout on 

 both surfaces, beneath also glandulose; costæ beneath densily clothed with red 

 scales, which generally stand at open angles to the costa and narrow from a sub- 

 bullale 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'/2 — 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, Goeldi (C) — Rio, Glazioi; nr. 2369 (H), SeUow (B\ Lenormand (B) - Sao 

 Paulo: Bella vista ad fluraen Rio Pardo, Wettstein u. Schiffner 1901 (C, Hb. Wien i — 

 Rio Tieté, Gerder nr. 80 (R). 



Paraguay: Hassler (C). 



Besides these specimens I have seen numerous others originating from plants 

 cultivated in Berlin 1862 and Kew 1868 under the names Lasirea vestita J. Sm. and 

 L. üulpina Kl., which latter very proper name has not been published. 



41. Dryopteris nigrovenia (Christ) C. Chr. Ind. 279. 1905 — Fig. 9 a. 



Syn. Nephrodium nigrovenium Christ, Bol. Gaz. 20: 545. 1895. 



Aspidium setosum Kl. Linn. 20: 371. 1847 (description; non Sw.). 



Aspidium deltoideum Fourn. Mex. pi. 1: 93. 1872 (non Sw.). 

 Type from Honduras: San Pedro Sula, Depart. Santa Barbara, 1000', leg. 

 Thieme, ed. DoNNELL Smith nr. 5646 (W!, C). 



