224 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, No. 11 
The synonymy of the species is given below: 
1. DIsSANTHELIUM CALIFORNICUM (Nutt.) Benth. in Hook. Icon. Pl. III. 
4: 56. pl. 1375. 1881. Based on the next. 
Stenochloa californica Nutt. Journ. Acad. Phila. Il. 1: 189. 1848. Type 
from Santa Catalina Island, Gambel. 
Dr. B. L. Robinson has kindly sent to the U. S. National Herbarium a 
tracing of the type specimen in the Gray Herbarium and a fragment of the 
inflorescence. The specimen is about 25 em. tall but without the roots, 
bearing three flat, lax blades and a narrow panicle 10 cm. long. One of the 
spikelets in the fragment sent contains three florets. The label reads, 
“*Stenochloa poaeoides. Catalina, Calif.”’ The asterisk indicates a new 
species, according to Nuttall’s usual method, but the specific name was 
changed in publication to californica. This species does not appear to be 
closely related to the other two, but it does not seem to be sufficiently dif- 
ferent to constitute a distinct genus. 
The only specimen in the U. 8. National Herbarium is from San Cle- 
mente Island, California (Trask 324). The specimen from Tassajara Hot 
Springs (Elmer 3317), cited in Jepson’s Flora of California (1:141. 1912), 
proves to be Poa howellit Vasey & Scribn. 
2. Dissanthelium calycilum (Presl) Hitche. 
Brizopyrum calycinum Presl, Rel. Haenk. 1: 281. 1830. Locality not known 
but probably Peru. 
Poa calycina Kunth, Rév. Gram. 1: Suppl. XXVIII. 1834. Based on 
the preceding. 
Dissanthelium supinum Trin. Linnaea 10: 305. 1836. The type from 
Cerro de Pasco, Peru. 
Deschampsia mathewsii Ball, Journ. Linn. Soc. Bot. 22: 60. 1885. Type 
from the Peruvian Andes, collected by Mathews. 
Dissanthelium sclerochloides Fourn. Mex. Pl. 2: 112. 1886. Fournier 
mentions two specimens, Nevada de Toluca, Hahn, and San Luis de 
Potosi, Virlet 1434, neither of which I have seen. 
In the U. S. National Herbarium are the following specimens of this 
species: Mrxico: Nevada de Toluca, Pringle 4222; Ixtaccihuatl, Purpus 
1633. Peru: Pifiasniocj, Cook & Gilbert 1297, 1305; Casapalta, Ball in 
1882 (a fragment from a duplicate type in the Gray Herbarium). Bo.ivia: 
Without locality, Bang 1873. 
3. DisSANTHELIUM MINIMUM Pilger, Bot. Jahrb. Engler 56: Beibl. 123: 28. 
1920. The type from the mountains of Peru, between Pisco and Aya- 
cucho (Weberbauer 5451). 
Vilfa macusaniensis Steud.; Lechl. Berb. Amer. Austr. 56. 1857 (nomen 
nudum). This work is primarily an account of the genus Berberts in 
South America. Appended to this is a list of the plants collected in 
South America by Lechler, classified according to countries, each name 
followed by the number of the species in Lechler’s exsiccatae as issued 
by Hohenacker. In this case the name is under the Peruvian collection 
and the number is 1836. 
