374 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Specimens examined: 
West INpies: Near Ponce, Porto Rico, 1902, Heller 6090; Nassau, Bahamas, 
1903, Curtiss 16; Kingston, Jamaica 1890, A. 8S. Hitchcock; El Cobre, 
Cuba, 1902, Pollard & Palmer. 
CoLUMBIA: Santa Marta, 1898-01, J/. H. Smith, 571. 
Mexico: Guaymas, Sonora, 1887, Palmer 146; Hermosillo, 1892, Brandegee; 
Altata, Sinaloa, 1904, Brandegee; Culiacan, Sinaloa, 1904, Brandegee; 
San Gregorio, Baja California, 1890, Brandegee 483; Ixmiquilpan, 
Hidalgo, 1905, Purpis 1487; Guaymas, 1897, Maltby 192; San Luis 
Potosi, 1878, Parry & Palmer 772; rocky hills of the Somer Sonora, 
1851-52, Wright 1715; Oaxaca Valley, Oaxaca, 1894, °C. LL. Smith 859; 
Villa Union, Sinaloa. 1895, F’. H. Lamb 888; Santa Cruz, Sonora, 1852, 
Thurber 23805, 
ARIZONA: Tucson, 1894, Toumey; Santa Catalina Mountains, 1885, Pringle; 
Santa Catalina Mountains, 1885, Lemmon; Camp Grant, 1867, Palmer 
212; Lowell, 1884, Parish; head of the Cienega, 1874, Rothrock 590. 
Texas: Bofecillos, 1881, Havard. 
2, Commicarpus brandegei Standley, nom. nov. 
Boerhaavia clongata Brandeg. Proc. Cal. Acad. Il. 2:199, 1889, not Salisb. 
Prod. 56. 1796. 
This closely resembles C. scandens in general appearance. The flowers, how- 
ever, are much larger, 8 to 10 mm. in diameter and much longer than the small 
ovary; the pedicels are pubescent instead of glabrous; the leaves are distinctly 
mucronate or apiculate, and the fruit has mucilaginous glands which form hori- 
zontal bands about it instead of being scattered irregularly as in C. scandens, 
Specimens examined: 
BaJA CALIFORNIA: San Pablo, 1889, Brandegee, type; Jesus Maria, 1889, 
Brandegee; Arroyo Salado, 1901, Purpus 243. 
2a. Commicarpus brandegei glabrior Standley, subsp. nov. 
In general appearance and in the form of the fruit and size of the perianths 
this plant resembles the species. The stem, however, and especially the pedicels, 
are more slender; the pedicels are glabrous instead of pubescent, and the leaves 
are broadly lanceolate and apiculate. 
Type in the herbarium of the University of California (no, 101287), collected 
at San José del Cabo, Baja California, September 29, 1893, Brandegee. 
14. ANULOCAULIS Standley. 
Anulocaulis Standley, gen. nov. 
Boerhaavia of various authors, in part, not L. 
Perennial herbs, stout and erect; stems glabrous, but the middle of each 
internode usually provided with a reddish ring which exudes a mucilaginous 
fluid; leaves with very thick, rigid, rather fleshy blades, opposite, margins fre- 
quently lacerate, petioled; flowers in small clusters, these variously arranged, 
sessile or pediceled, sometimes subumbellate, the clusters subtended by a few 
small bracts; perianth funnelform with a prominent tube; fruit turbinate or 
biturbinate, rather obscurely 10-ribbed. 
There is no good reason why plants which differ so markedly as these from 
typical Boerhaavias should be included in the genus Boerhaavia. Such treat- 
ment is certainly not conducive to generic unity. The plants included in the 
new genus may be separated at once by their distinct general appearance, due 
especially to their large, thick leaves, the shape of the perianth which has a 
