NEW OR NOTEWORTHY SPECIES. 217 
Amador County both Mr. Hansen and I have collected it 
in an enlarged form, with from 5 to 15 flowers to the head, 
and otherwise somewhat closely verging upon T. variegatum, 
yet readily distinguishable from that by its far more slender 
habit, almost capillary peduncles, and different calyx, as 
wellas whitish corollas. It is also found in the more ele- 
vated parts of the Coast Range northward. But it is com- 
pletely separated geographically from the real variegatum, 
which is a lowland plant of the district lying toward the 
sea, in Oregon and Washington. 
TRIFOLIUM PUSILLUM. Annual, much branched from the 
base and decumbent, barely 2 inches high, the branches fili- 
form and peduncles capillary: leaflets all broadly obcordate. 
4 to 1 line long, dentate by 2 to 4 triangular teeth on either 
margin: capillary peduncles 3 inch long; involuere re- 
duced to a single several-cleft lobe and somewhat unilateral, 
1-2-flowered : calyx-teeth scarcely longer than the tube, ob- 
long-ovate, abruptly acuminate to a short aristiform üp: 
corolla about thrice the length of the calyx, white, with 
purple-tipped wing petals. 
Known only from the Yosemite Valley, where it was col- 
lected by Dr. C. C. Parry in 1881, and distributed by him as 
T. monanthum ; also mistaken for that species by Marcus 
Jones, who, in publishing T. multicaule, took the present 
plant for 7. monanthum on the authority of Sereno Watson. 
It is referred to by me in the Flora Franciscana, p. 32, as a 
" one-flowered state of T. variegatum," what I then understood 
as T. variegatum being the plant now published as T. gemi- 
niflorum, with which I have more than once tried to unite 
T. pusillum as a mere variety ; but its leaves, its calyx-lobes, 
and its mode of growth are too radically different. 
TRIFOLIUM prANTHUM. Very dwarf perennial, the rather 
stoutish stems scarcely an inch long, surpassed by the upper 
petioles and peduncles; herbage deep green and very gla- 
brous: leaflets obcordate or obovate, about j inch long, 
