326 ; BOTANY. 
2-5 transversely linear-oblong sub-continuous involucres.——Sp. Fil. ii, t. 
75, A; not of Bory and Willdenow. Keyserling, Adiantum, p. 15, 37, No. 
55. A. Chilense, Torrey in Botany of Parke’s Survey, p. 21; Brackenridge, 
Ferns of U. S, Expl. Exped. p. 97; D. C. Eaton, Botany of Mexican 
Boundary, p. 233; and in Robinson’s Catalogue of Ferns, not of Kaulfuss. 
A. tenerum, Torrey in Emory’s Notes of a Military Reconnoissance from 
Fort Leavenworth to San Diego, p.155. Newberry in Botany of William- 
son’s and Abbot’s Survey, p. 93, not of Swartz. 
n Diego, Califo ornia, rth dto O , common, t of the 
Coast aaa  Btalke 6-12 inches long; ; frond about ‘the same length, more than half as wide ‘at the ss 
gradually narrower upwards, the pinnules 4-14 inches broad, rounded, or the larger ones semicircular or 
almost reniform, bearing at first a few scattered hairs along the veins, soon quite smooth. The aon 
commonly have from one to four slight incisions on the rounded side. The very acute teeth of the sterile 
pinnules having the vein extending to the point of the teeth, and the transversely linear involucres, 
separate this from A. Chilense, with which I formerly confounded it, that species having the veins extend- 
T 
from is marked in Hooker’s herbarium “Malacca, Griffith.” It is on the same sheet with a specimen 
more like a form of A, Capillus-Veneris, marked as coming from Delessert’s herbarium, and collected in 
the Mauritius. Mr. Baker suggested a possible interchange or crossing of the tickets, an accident too 
common in all herbaria. Keyserling, who has apparently not seen the specimens, says that the 4. 
emarginatum of Hooker’s plate was “nach einem von B. Delessert hinterlassenen Exemplar, das vermuth- 
lich aus Californien stammt.” It is probably too late to trace with certainty the history and origin of the 
specimen figured, but it is enough that it accurately represents the Californian species, and none other. 
The original A. emarginatum of Bory and Willdenow was confessedly “very like the preceding [ A. Capillus- 
Veneris], but constantly smaller, the pinnules always obcordate and never lobed.” Keyserling refers this 
without hesitation to 4. Capillus-Veneris, leaving the name free for the present species, for which it is not 
especially appropriate, though I do not think it is to be rejected on the score of utter unlitness. : 
Adiantum tricholepis, Fée. 
“Frond oval in outline; stalk and rachis smooth, polished, deep- 
black ; pinnules roundish, moderately long-petioled, hairy on both ‘surfaces; 
sori very few, of unequal size; involucre very velvety ; rootstock creeping, 
aly, the scales linear, acuminate, tawny.”—8"™° Mém. p. 72. Keyserling, 
Adiantum, p. 15, 37, No. 56. A. Chilense, var. hirsutum, Hook. Sp. Fil. ii, 
p- 43 (in part); D. C. Eaton in Bot. of Mexican Boundary, p. 233. A. 
dilatatum, Nutt. MS. in herb. Hook., and quoted in Sp. Fil. ].¢. A. pilosum, 
D. C. Eaton in Robinson’s Catalogue, but not of Fée, which is A. Chilense, 
var. hirsutum, Keyserl., from Chile. 
Lil p:.Pp. 
In arocky ravine near tl , Western Texas, Dr. Bigelov. apap (ae ais 
Nuttall. Mexico and Yucatan. This belongs to the same group of species with the two last, a group 
characterized by having frends of a pyramidal outline, twice to four times pinnate at ae tam gradually 
