229 



sh 



No. 144T. — Noiholmia Candida, Hooker. Shaded ledges, canons, 



Sierra Madre, October, 1887. 



Specimens very large and fine, and unusually divided, the 

 divisions of the pinnse being again quite deeply pinnatifid. 



No. 1440. — A^otkoIcEJia Palmeri, Baker. Mossy ledges of La 

 Bufa Mt, above Cusihuiriachic, August, 1887. 

 A very distinct ceraceous fern, with the usual white or yel- 

 lowish powder, between TV, 7iivea on the one hand and N, Pri. ^ 

 on the other. The segments are much like those of nivea, for 

 which the looser fronds might be mistaken, but the fronds are 

 aped more like Prmglci, only with the lower pinnse much re- 

 duced, and with very short or scarcely any stalks. 



No. 832. — Pellcea marginata, Baker. Cool, rocky slopes, Map- 



ula Mts., October, 1886. 

 No. 1442. — Pellma marginatay V2x, pyrafnidalis. Baker. Rocky 



slopes in shade, Sierra Madre, September, 1887. 



A very distinct form, and peculiar in the long narrow droop- 

 ing segments of the tall fertile fronds. 

 No. 1443. — Pellcea Seeinaitni, Hooker. Dry, rocky slopes, 



Sierra Madre, October, 1887- 



A very handsome PellcFa, unHke any of our other species, and 

 suggesting some of the more rigid forms oi Cheilanthes micro- 



phylla, but with stout reddish stalks and rachises. 



The specimens are somewhat more compound than the de- 

 scription calls for, but answer to it well enough otherwise, and 

 agree with specimens at Cambridge. The determination is ap- 

 proved by Prof. Eaton, and there appears to be no other disposi- 

 tion to be made of the specimens. 

 No. 825. — Polypoditim lanceolatiun, L. Cold cliffs, Povtrero 



Peak, September. 1886. 



An interesting dwarf Polypoditim, with very large sori, and 

 peltate scales on both surfaces, some specimens densely squamosa. 

 No. ii6?>.~Po!ypodtum thysanolepis, A. Br. Ledges, Chapul- 



tepec, May, 1887. 

 No. 834._J^^^^^7^ Mexicana, Fee. Damp ledges near Chihua- 

 hua, September, 1886. 



Medford, J 



Geo. E. Davenport. 



