256 



204 



257. Dryopteris Goeldii n. sp. — Fig. 43 a. 



Type from Brazil: Linkes Ufer d. Parahyba, leg. Goeldi 1887 nr. 3 (C). 



Rhizomate oblique-erecto, squamis paucis stellalo-ciliatis instructo. Stipitibus 



ad 30 cm longis, glabris. Lamina ovata, 30—40 cm longa, 20 cm lata, pure viridi, 



firmo-herbacea, rachi minute stellalo-puberula excepta glaberrima, ad insertionem 



pinnae lateralis supreniae gemmulifera, pinnata cum pinna terminali subhastata. 



Pinnis 6 — 7-jugis, inter se 3 cm 

 remotis, breviter petiolulatis, 

 lanceolatis, 10 cm longis, l'/icm 

 latis, acuminatis, ad basin pa- 

 rum attenuatis, saepe auriculatis, 

 ad tertiam partem incisis. Lobis 

 obliquis, acutis vel obtusiusculis. 

 Venis 8 — 9-jugis, basalibus dua- 

 bus semper anastomosantibus, 

 sequentibus duabus ad sinum 

 connivenlibus. Soris fere media- 

 libus vel potius inframedialibus. 

 Indusiis minimis, pilis bi-tri- 

 furcatis cilialis, mox evanidis. 

 Sporangiis glabris. 



A critical species, in certain 

 characters resembling several 

 other species. It differs from I), 

 tetragona by its less cut pinnæ and 

 glabrous costæ, from D. juruen- 

 sis by more pinnæ and not war- 

 ted surfaces, from D pyramidata 

 by distant pinnæ, terminal pinna, 

 glabrous costæ and venation, 

 from D. anoptera, which it re- 

 sembles in venation, by glabrous 

 sporangia and absence of scales, 

 from D. vivipara by thinner tex- 

 ture and distinctly lobed pinnæ, from 1). scabra by venation, glabrous frond etc. 

 Still its nearest ally is D. siraminea and it may be the same species and like it a 

 variety of D. vioipara; it differs by ils united basal veins and more numerous veins, 

 more deeply cut pinnæ of thinner texture and margins not so thickened. 



258. Dryopteris juruensis n. sp. — Fig. 43 d. 

 Type from Amazonas: Auf Erdboden, im Walde bei Born Firn, Rio Juruå, 

 Oct. 1900, leg. E. Ule, Herb. Brazil. Amazonasexpedition nr. 5325 (B!; C) — Spruce 

 nr. 3905, ad fluv. Maranon (B) is exactly the same. 



Fig. 43 Piiinæ (x^lM and segments (x l'lsl of a. D. Goeldii 



n. sp. — b. D. straminea (Bak.) C. Chr. and d. D. juruensis 



n. sp. c. Segment of D. vivipara (Raddi) C. Chr. X l'I». 



