1894. ] Filices Mexicana. V. 391 
The exceedingly narrow divisions, and the dareoid appear- 
ance of the sori on the upper part of Mr. Pringle’s plant led 
me to look for it in the Darea section of this genus, but Prof. 
Eaton considers it a mere form of A. rhizophyllum, and a 
more careful examination convinces me that he is right. 
There are specimens of this species and 5,531 in the Cam- 
bridge Herbarium with proliferous fronds, a seemingly not 
uncommon character in this genus. 
A, rubinum, n. $e. Sigh 
Rootstocks tufted, clothed at the crown, and the young 
croziers covered with blackish-brown fibrillose scales and 
chaff; fronds clustered, 6 to 15 inches tall, 3 to $ of an inch 
broad, pinnate; stipites 2 to 6 inches long, moderately stout, 
and, as well as the rachises bright ruby colored, smooth and 
glossy; pinne 20 to 30 or more pairs, sessile, or in the larger 
specimens sub-sessile, variously shaped, mostly unequal-sided, 
wedge-shaped at base, or sub-dimidiate, the lower side cut 
away one-half to two-thirds in a curved line with the upper 
base line parallel with the rachis, lowermost pairs distant, 
thomboidal or sub-reniform, margins entire or slightly cre- 
scure, sori large, 1 to 5 pair to a pinna, brown when mature. 
Cold cliffs, Sierra de las Cruces, Sept. 11, 1892 
No description can make the distinctive character of this 
fine ruby-stalked Asplenium perfectly clear, but once seen it 
's Not likely to be mistaken for any other known species. 
In general appearance and habit it resembles a robust form of 
A. 7; richomanes, but the stout red stalks, which extend nearly 
to the apex of the frond before greening, and the enormous 
“rl render its identification comparatively easy. ihe back 
n mature pinna is a solid mass of brown sporangia, nearly 
scuring the persistent indusia and presenting the appear- 
nce of an Acrostichum. 
T 4. Shepherdii Spreng. 3,958, a and B. 
*Masopo cafion, June, 1891. 
Borrycuium. “ 
a "atricariefolium R. Br. 5,193- 
— volcano of Toluca, Sept., 1892. 
- lernatum Sw. 5,192. 000" Sept. 
rtoatine Meadows, Sierra de las Cruces, 10, a 
