18 Muhlenbergia, Volume 9 
Low annual, branching from the base, 1 dm. high or less, 
appressed villous pubescent: leaflets narrowly oblong-obovate, 
7mm. long, 2.5mm. wide, emarginate, erose-dentate; subtending 
stipule broadly ovate-acuminate, entire or with an occasional 
notch near the apex; lower stipules much uarrower and with a 
long aristate point 2.5mm. long: heads sessile, one or two, orbic- 
ular-ovate, subtended bya stipule and almost sessile leaf: flowers 
dark purple: calyx tube 2mm. long, strongly 1o-nerved, teeth 
3mm. long, erect, somewhat rigid: corolla little exceeding the 
calyx teeth; vexillum 6mm. long, 1.3mm. wide, elliptical, mi- 
nutely erose dentate at apex: legume glabrous, straw-colored, 
striate, acute at both ends, 3mm. long, 1.5mm. wide, 1-seeded: 
seeds yellowish-green, devoid of markings, ovoid, 1.8 mm. long. 
Miss McDermott cites a list of collections which she con- 
siders as catalinae from as far north as Oregon, and on the main- 
land from Berkeley, Monterey, etc. She also cites sheet 80727 
in the herbarium of the University of California as the type. 
The type/is(withcut a doubt in the Gray Herbarium, at Cam- 
bridge, Massachusetts. 
In the herbarium at Kew there is a specimen of Mr. Bran- 
degee’s collection of May 13, 1890, from Santa Catalina island, 
and attached to it a letter to Professor Oliver by Dr. Sereno 
Watson, written June 24, 1890° That part of the letter refer- 
ting to this Trifolium is as follows: ‘There comes now a Trifo- 
lium from the Santa Catalina Islands, California, singularly un- 
like all known native species and strongly resembling T. saxat- 
ile of the European Alps. It may be, if not that, (and it differs 
in some respects—more coriaceous calyx with stiffer erect teeth, 
and more naked stems), some allied species that is not repre- 
sented inour herbarium. Will vou kindly refer it to Mr. Baker 
or some one of his assistants, for comparison?” 
TRIFOLIUM PETROPHILUM Heller 
7. dichotomum forma petrophilum McDermott 
A small annual 4 to 8 inches high, with a characteristic 
silver-white hairiness and conspicuous dark purple and white 
flowers. It is found on several of the higher peaks in Napa and 
Santa Clara counties, Californ’a, 
