145 197 
The figure quoled above gives a good illustration of the common form of this 
characteristic. species, which scarcely can be confounded with any other Mexican 
Dryopleris. In general habit it resembles forms of D. normalis or of D. augescens, 
but its generally less cut pinne, pluricellular hairs, linear to oblong, exindusiate 
sori and setose sporangia mark it at once. Veins simple, 3—6 to a side, the two 
basal ones running to sinus. GALEOTTIs and LIEBMANN's specimens belong to a 
small form having the most pinnz confluent at base and scarcely incised more 
than halfway down to the costa, the lower ones often distinctly reduced. This 
form occurs at altitudes of 2— 3000 m, while the 
species al lower altitudes grows considerably larger. 
I have seen specimens measuring 30 cm in length 
(lamina only) and 20 cm in breadth and having 
the pinnz incised two-thirds of the way down. 
Such large forms are exactly intermediate between 
the typical form and the var. procurrens. — D. 
pilosa seems to be confined to Southern Mexico; 
I have seen the following specimens: 
Chinantla, Depart. Puebla, LigesmMann (H) — Puebla, ARSENE 
(RB, CC) — Jalisco, near Guadalajara, 5000’, PRINGLE 
nr. 2589 (B, S, W), 9346 (W) — Morelos, Sierra de 
Tepoxtlan 7500’, PRINGLE nr. 11265 (B, H, W) — 
Jalisco, at Rio Blanco, Rose and PAINTER nr. 7502 
(W) — Mexico, Scumitz nr. 367 (B). 

var. procurrens (Fée) Bak. Syn. Fil. 
E1A . = ig. 27. . pilos - et. G.) C; Chr. 
515: 1874. — Fig. 97. Fig. 27. D. pilosa jM et. G.) € eur 
var. procurrens (Fée) Bak, — Pinna 
Sy rocur "ée. 8 d 
Syn. Gymnogramme procurrens Fée, 8. mém. >< 4I5; segments » 1!]s. 
78. 1857. 
Gymnogramme pilosa var. major Fourn. Mex. pl. 1: 73. 1872. 
Dryopteris pseudo-lotta Christ, Bull. l'herb. Boiss. II. 7: 415. 1907. 
Differs from the type by its broad (2-—2'» cm) pinnz, which are deeply 
cut, most of them free at base, the lower ones not reduced, often shortly petiolate. 
Veins 6—10 to a side, often furcate, somewhat prominent beneath. 
Forét de la deserta Vieja, BouncEaAu nr. 921 (H, S) Ixtaccihuatl, Purrus nr. 1603 (W) — Oaxaca, 
Cerro San Felipe, GoNzárEz et Conzarri nr. 711 (W) Chiapas, S. Cristobal, G. MuNcH 
nr. 9 and 23 (C. 
204. Dryopteris dasyphylla C. Chr. Ind. 260. 1905. 
Syn. Gymnogramma villosa Link, Hort. Berol. 2: 51. 1833; Fil. sp. 137. 
Based on plants cultivated in Hort. Berol. I have seen Link’s type specimens 
(B) and several others, but all from cultivated plants. In handbooks of ferns it is 
said to be a Brazilian species, but I have never seen a specimen from Brazil. Link, 
however, says (in Fil. sp. 137): “Hab. in provincia Caracas, Brasilia?" It has, I 
think, never been stated, where the species grows wild. 
D. K. D. Vidensk. Selsk. Skr., 7. Reekke, naturvidensk. og mathem. Afd. X. 2. 26 
