84 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
leaves, no involucre, involucels of few small bractlets, and yellow 
flowers (in ours). 
Type species, Zauschia tecanu Gray: 
A Mexican genus of about 20 species, one of which reaches Texas. 
1. Museniopsistexana (Gray) C. &R., 
Rey. N. Am. Umbell. 123. 1888. 
Fia. 16. 
Tauschia texanaGray, Bost. Jour, Nat. 
Hist. 6: 211. 1850 (Pl. Lindh.). 
Eulophus tecanus Benth, & Hook. 
Gen. PE 1: 885. 1867. 
Velaea tevana Drude in Engler & 
Prantl. Nat. Pflanzenfam, 3*: 169. 
1898. 
Acaulescent; scape 5 to 20 em. 
Fie. 16.—Museniopsis texana: a, b, x 8. high, longer than the leaves, some- 
what scabrous at base of umbels; 
leaves 5 to 7-pinnate; lower pinne petiolate, pinnately parted; seg- 
ments cuneiform, 3 to 5-cleft; umbel 5 to 8-rayed; fruit 3 mm. long. 
Type locality, ‘‘ western Texas, near Austin?;” collected by 
Wright; type in Herb. Gray. 
Texas, and extending into Mexico. 
Specimens examined: 
Texas: Industry, Wurzlow, May, 1895. 
18. BUPLEURUM L. Sp. Pl. 1: 236. 1753. 
Calyx teeth obsolete. Fruit oblong, flattened laterally, with rather 
broad commissure.  Carpel with equal very slender or prominent 
ribs, each with a very small group of 
strengthening cells. Stylopodium 
prominent and flat. Oil tubes want- 
ing, or continuous about the seed cav- 
ity. Seed face plane or somewhat 
concave. 
Annuals or perennials, with simple 
entire clasping or perfoliate stem leaves, 
with or without an involucre, involucels fy 
of 5 or more ovate bractlets, and yel- e7 
low flowers. Fia. 17.—Bupleurum americanum: 
ad, X 8; b, x 12. 
First species cited, 2. rotundifolium L. 
A group of 60 or more species, all but one belonging to the Old 
World. 
The genus includes species of very diverse characters, and the description given 
above applies only to those included in our flora. 
