144 BOTANICAL GAZETTE [AUGUST 
leaves essentially oblong, 1-2 cm. long, 2-3 mm. broad: inflores- 
cence about 1 cm. long, peduncled, terminating the main stem and 
its lateral branches, mostly 2-forked, close even in age: corollas 
minute: calyx persistent and often in fruit very finely appressed- 
hispid, without a lens appearing silky; sepals ovate-lanceolate, 
2.5-3.5 mm. long, the midrib pronounced but not cartilaginous: 
nutlets 3-4, nearly 2.5 mm. long, mainly ovate, lustrous brown, or 
gray-spotted with brown, very smooth, acutely angled, but not 
margined; groove closed or slightly open near the forked and closed 
base. 
Rocky slopes Malheur Valley, near Harper Ranch, Oregon, alt. 1100 ft., 
June to, 1896, J. B. Leiberg 2235 (type in Gray Herb. 
This specimen was distributed as C. submollis (Gray) Coville (C. utahensis 
[Gray] Greene), and that species is its nearest ally. However, the perfectly 
smooth, less sharply angled nutlets, with closed or nearly closed groove, and 
the larger sepals are some of the characters which forbid its being referred to 
C. utahensis. The larger calyces suggest C. mohavensis Greene, but in that 
species and in its near relative C. oxygona (Gray) Greene the flowers are con- 
spicuous and the nutlets broader and acutely margined. C. vinctens and 
. utahensis occupy positions analogous to those of C. mohavensis and C. oxy- 
gona, except that the two former are more distinct from each other than are 
the two latter. Furthermore, C. vinctens and C. Bartolomaei Greene (the only 
other member of the group) are (as pointed out by GREENE in regard to his 
species) connecting links between the smooth-fruited species in the deciduous 
calyx and persistent calyx groups. C. Bartolomaei is apparently confined to 
Lower California, and there it is unique in its pubescence and minute nutlets. 
None of the species, except C. vinctens, has been secured farther north than 
Utah or Nevada, the distribution of the group apparently centering in the 
desert areas of the southwest. 
Oreocarya dura, n. sp.—Perennial, the single caudex densely 
clothed with leaf bases of many years: * stems usually single, 
1-1.5 dm. high, strigillose and densely hispid with widely spreading 
hairs: leaves oblanceolate or nearly oblong, about 3 cm. long and 
5 mm. wide, not greatly reduced on the stem except in the inflores- 
cence and there bractlike, densely shaggy with an indument of fine 
tangled hairs almost concealed by numerous pustulate-based 
spreading hirsute hairs: inflorescence a thrysoid glomerule: calyx 
densely hispid with greenish yellow hairs, the linear divisions about 
4.5 mm. long, a little longer than the corolla tube: corolla white; 
appendages prominent: fruit unknown. 
