86 Univer.sify of California Puhlications . [botany 



simple racemes are only au inch or two long. At lower altitudes 

 and in better soil (no. 24G5) it becomes more robust with larger 

 leaves, but the inflorescence is scarcely different from that of 

 specimens from the highest altitudes. 



Potentilla acuminata Hall, sp. uov. 



Perennial from a stout somewhat woody root: stems several, 

 slender, glandular pubescent, 4 in. or less high, not scapose: 

 leaves sparsely pubescent on both sides, the petioles glandular, 

 pinnate with one or two pairs of sessile or short-petiolate leaflets, 

 or all but the terminal sometimes suppressed; stipules lanceolate, 

 acute, entire; leaflets orbicular to cuneiform-obovate, 2-6 lines 

 wide, conspicuously toothed: fi(1wers few; pedicels slender, 5 

 lines or less long: hypanthium hemispherical, 1 line wide; 

 bractlets linear-lanceolate, acute, half as long as the narrowly 

 ovate acuminate sepals: petals yellow, narrowly ovate, acuminate, 

 equalling the sepals: stamens more than 20, closely inserted 

 about the pistils: akenes 10 or more, slightly incurved at apex, 

 tlie somewhat longer style attached just below the tip. 



Growing from the cracks of rocks along Chino Creek, a 

 short distance below Round Valley, San Jacinto Mt., California, 

 at aliout 8000 ft. alt., Aug. 2, 1901 (H. M. Hall, no. 2605). 

 The type is in the Herbarium of the University of California. 



Nearest to P. Grayi Wats., from which it differs in being not 

 at all scapose, in the pubescence, and in the shape and arrange- 

 ment of the leaflets, as well as in the smaller flowers, narrower 

 bractlets, etc. It is distinguished from P. hrevifolia by its leafy 

 stem, the longer petioles, the altogether different leaflets, and the 

 much smaller flowers. The cut of the leaflets and the general 

 appearance of this species suggest a reduced form of some member 

 of the giandulosa group (Drymocallis Tourr.), but in technical 

 characters it is al)uudantly distinct, having narrow, acuminate 

 petals and slender styles, each of which is attached to a point 

 near the apex of its akene. 



Potentilla callida Hall, sp. nov. 



Root thick, somewhat woody: stems several, slender, erect or 

 ascending, 2 in. or less high, villous throughout with long hairs 

 and also bearing some short glandular hairs above: stipules 



