72 20 



Colombia: Santa Marta, H. H. Smith nr. 1038 (Rg). 

 Ecuador: Nieblj-, Sodiho (KB). 



var. Rossii, n. var. 



Under the name D. Rossii I have described a Mexican fern as a new species 



after specimens collected in Morelos; Cuernavaca, Santa Maria by H. Ross nr. 279 



(Herb. Munich, CC); my description is till now not published. Comparing my 



specimen with several other specimens from Mexico I fear that my proposed new 



species cannot be distinguished specifically from the Mexican form of D. patiila, 



Aspid. apertum Fée, although the typical form looks very distinct. It differs by 



the deeply cut lamina, which is distinctly glandular on both surfaces, by its very 



unequal-sided pinnæ and pinnules, and especially by its narrow, toothed segments; 



under surface pale or even glaucous; stipe and rachis reddish, clothed with narrow 



scales. Indusium small, reddish. — The lamina is generally deltoid in outline, 



firm. — This is nearly exactly a D. glandiilifera on an enlarged scale, — the basal 



pinnæ are up to 15 cm. long — and it also comes near to certain forms of D. cin- 



namomea, from which it differs by its larger, deltoid lamina, pale-green underside, 



position of sori and unequal-sided pinnules. 



Mexico: State of Mexico, Hac. de la Encarnacion, Rose and Painter nr. 8477 (\V); near Tultenango, 

 Rose and Painter nr. 78(11 (W) — Puebla, IxtaccihuatI, 2160 m. F. Nicolas nr. 5549 (RB) 



— Jalisco, near Guadalajara, Edw. Palmer nr. 288 (W), Rose and Painter nr. 7319 (Wj; 

 Rio Blanco, Edw. Palmer nr. 149 (W); between Colotlan and Bolanos, J. N. Rose nr. 2837 

 (W) — Morelos, Cuernavaca, H. Ross nr. 279 (CC) — Michoacan, Mt. Patamban, E. W. Nelson 

 nr. 6590 (W) ; Patzcuaro, Pringle nr. 3362 (W); near Morelia in different localities, 

 F. Arsène (RB). 



Arizona: Huachuca Mts., Conservatory Canyon, Lemmon (W) — (A small form near D. glandiilifera). 



9. Dryopteris ulvensis Hierou. Hcdwigia 4(j: 346 lab. 7 fig. 18. 1907. 



Type from Ecuador, in valle Pastaza, StObel nr. 848 (B). 

 This I have not seen. It is certainly closely allied to Ü. patiila but is 

 described as exindusiate. 



10. Dryopteris Maxoni Underw. el C. Chr. Amer. Fern Journal 1: 96. 1911. 



Type from Mexico: Morelos canyons above Cuernavaca, 5500 f I., leg. Pringle 

 nr. 6190 (W! also S). — 



other specimens seen: type locality, J. N. Rose and Painter nr. 6920 (W') ; TIatzalan bei Tepotzlan, 

 Morelos, C. et E. Seler nr. 4518 (B) ~ Michoacan: Coru Station, Pringle nr. 8846 (S, W; 



— Jalisco: near Etzatlan, Rose and Painter nr. 7597 (W) — Verj' numerous specimens 

 were collected in different localities near Morelia by J. Arsène (RB, CC). 



Eudrgopteris rhizomate crasso, obliquo, sparse squamoso. Stipilibus crassis, 

 slramineis, 3 — 4 dem. longis, teretibus, squamis integris, ovatis, siccis, pallidis (vel 

 in centro atrofuscis) sparse instruclis. Lamina deltoidea vel deltoideo-ovata vel 

 ovato-lanceolata, 4 — 6 dem. longa, chartacea vel coriacea, pallide viridi, pilis omnino 

 destituta, ad rachin costasque infra squamis pallidis, parvis onusta, bipinnata- 



