Nelson New Plants from Nevada. 95 



ally denuded and becoming bright green with only scattered stellate 

 hairs; leaves small, suborbicular with truncate or subcordate base, 1-2 

 cm. broad, irregularly crenulate, scarcely lobed, rather thick and slight 

 ly rugose, densely stellate-canescent, ultimately more or less denuded 

 and greenish above; the thyrsoid raceme seemingly nearly naked, but 

 the (3-flowered) clusters axillary to the reduced leaves which above are 

 mere bracts; pedicels slender, variable, often longer than the calyx, 

 densely stellate-pubescent as is also the calyx and fruit; calyx about 

 6 mm. long, cleft below the middle, its lobes triangular-lanceolate: 

 petals rhomboid-obovate, inequilateral with oblique summit, scarcely 

 emarginate, about 12 mm. long; fruit slightly depressed, white with the 

 dense pubescence, only 5 mm. broad and not so high; carpels wholly 

 muticous, the back and rounded dorsal angles subcartilaginous and the 

 sides altogether smooth and membranous, 2-ovuled and often 2-seeded. 



This was recently distributed as 8. ambigua but without any justifi 

 cation it would seem. It is altogether a much smaller plant in every 

 way and the smooth-sided carpels would take it quite out of that section 

 of Gray's revision (Proc. Am. Acad., 22:292) and of the revision as ex 

 tended by Dr. Robinson in Syn. PI. i l :315. For equally good reasons it 

 cannot well go into the section with S. Emoryi with which it also has 

 some affinities. 



Collected by L. N. Goodding at Calientis, Nevada, May 22, 1902, No. 

 916. 



Sphaerostigma tortuosa sp. nov. 



Perennial from the enlarged crowns of slender rhizomes; stems usual 

 ly several from the crown, spreading or erect, glabrous, somewhat stri- 

 ate, 1 dm, (more or less) in length, the longer ones inclined to be naked 

 near the base; leaves entire, glabrous, narrowly oblong or linear-oblan- 

 ceolate, 1-3 cm. long, tapering into a slender petiole about as long as the 

 blade, numerous on the crowns and in the lower portion of the inflores 

 cence; flowers numerous, crowded at the summit of the gradually elon 

 gating raceme, usually also some among the crown leaves; calyx tube 

 obconic, about 4 mm. long, equalled by the lanceolate reflexed seg 

 ments; petals white, broadly obovate, as long as the calyx-lobes; sta 

 mens subequal, with oblong anthers, about as long as the petals and the 

 slender style; stigma small, capitate; capsule linear, 1 cm. or more in 

 length, angled with rounded cartilaginous ribs, strikingly contorted and 

 entangled in the leafy raceme and among the leaves of the crown; seeds 

 oblong, obtuse at apex and pointed at base. 



This fine species was collected by Prof. P. B. Kennedy at Truckee 

 Pass, Virginia Mts., Washoe Co., Nevada, June 16, 1902. 



Phacelia monosperma sp. nov. 

 Biennial; stem simple, erect, rather stout, 3-4 dm. high, appressed- 



