338 BOTANY 
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Oregon to Lake Winnipeg, Wyoming Territory, and Lake Superior. Utah, Colorado, and Arizona, 
but not sent from California. This and the last have a continuous (not jointed) stalk, such as is found 
in W. obtusa and its immediate allies, but the indusium is rather that of W. Ilvensis, though very much 
aot Of the Texan plant (C. Wright, Nos. 830 and 2120), doubtfully referred to W. obtusa, I have 
yet seen no specimens in a condition for satisfactory examination. Sir W. J. Hooker had placed his 
casas in the same cover with W. Peruviana, and that species is now considered a var. of W. obtusa 
by Mr. Baker. 
Susorper. SCHIZMACE. 
XVI. ANEIMIA. Swartz. 
Sporangia ovate, sessile, opening longitudinally, furnished with a trans- 
verse apical complete operculiform ring, placed in two rows on the back of 
the very narrow branchlets of the two long-stalked panicled lower branches 
of a pinnately divided frond, the fertile branches in a few species entirely 
distinct from the sterile frond. Veins free or anastomosing—A genus of 
about twenty-seven species, none of them large Ferns, mostly South Ameri- 
can, one being South a and two coming within the borders of the 
United States. 
Aneimia Mexicana, Klotzsch. 
Rootstock creeping, densely covered with narrow subulate blackish 
chaff; fronds scattered, on slender stalks, pinnate; the two lower branches 
fertile, long-stalked, glandular-puberulent, bipinnate with densely clustered 
fructification; the rest of the frond like the sterile ones, deltoid-ovate, 
simply pinnate ; pinne about six pairs and a rather large terminal odd one, 
short-stalked, broadly ovate-lanceolate from a rounded or slightly cordate 
base, sub-coriaceous, smooth and somewhat glossy ; midrib very distinct ; 
veins free, oblique, parallel, closely placed, once or twice forked, the vein- 
lets running out into fine serratures—Linnza, xviii, p. 526. Kunze, Die 
Farrnk. ii, p. 75, t.131. Hooker, Ic. Pl. x, t. 988. 
Western Texas, Lindheimer, Wright. Also in various parts of Mexico. Plant a foot or eighteen 
inches high, the common stalk fully half of this height, smooth, except for a few scales near the base. 
The pinnw are 2-2} inches long and about, one-third as broad, sub-coriaceous in texture, and finely 
striated by the slightly raised veinlets. A. adiantifolia, Swartz, with a eae einiunate sterile segment, 
occurs in Florida, and is common in the West Indies and Tropical America. 
