BORAGE FAMILY 719 



3. P. Kingii A. Gray. Stem 2-3 dm. high, canescent-hirsute; basal leaves 

 spatulate, densely hirsute, the cauline oblong or lanceolate; inflorescence 

 branched; corolla white, &-8 mm. broad; fruiting cahTc 4-6 mm. long; lobes 

 lance-linear; nutlets roughened with scattered acute papillae. Sonnea Kingii 

 Greene. Arid valleys: Xev. — Ida. — (? Utah). Son. 



9. EREMOCARYA Greene. 



Dichotomously branched aimuals. Leaves alternate, linear, entire, hirsute- 

 canescent. Flowers perfect, regular, biserial in dense leafy racemes. Calyx 

 whoUy persistent, 5-cleft; lobes linear-oblong, obtuse, short-hirsute, not hispid. 

 Corolla minute, salver-shaped, white; throat obscurely appendaged. Style 

 thickened. Nutlets attached by a simple groove for their whole length to the 

 columnar receptacle. 



Nutlets smooth and shining. 1. E. micrantha. 



Nutlets finely murlcate, dull. 2. E. muricata. 



1. E. micrantha (Terr.) Greene. Stem slender, branched from the base, 

 diffuse, 5-15 cm. high, strigose; leaves hnear, 4-8 mm. long, hispid; corolla white, 

 barely 2 mm. long; nutlets oblong-ovate, acute. Eritrichium micranthum Torr. 

 Dry plains: w Tex. — s L'tah — s CaUf. L. Son. Je. 



2. E. muricata Rydb. Stem slender, branched throughout, with ascending 

 branches, strigose; leaves linear, 2-5 mm. long, hispidulous; corolla white, 1 mm. 

 long; Umb scarcely 0.5 mm. -n-ide; nutlets lanceolate in outline. Dry plains and 

 hills: s Utah — Ariz. L. Son. Ap-My. 



10. OREOCARYA Greene. 



Perermial or at least biennials, with taproots or short rootstocks. Leaves 

 alternate, the earher in basal rosettes, more or less hispid. Cah'x whoUy per- 

 sistent, .5-cleft; the lobes ascending or spreading in fruit. Corolla salverform, 

 white or yellowish; tube often elongate, annulate -nithin near the base; throat 

 closed by conspicuous fornices; hmb .5-lobed. Inflorescence th\Tsoid or panicu- 

 late, leafy-bracted. Xutlets triangular, sometimes somewhat wing-margined, 

 attached for the larger part of their length by a slender scar on the inner angle 

 to a subulate or columnar receptacle. 



CoroUct-tube not exserted. 



Fruit depressed; nutlets smooth, at the margins separated by an open space; caules- 

 cent cespitose perennials. 

 Leaves canescent. 



Nutlets all maturing. 



Leaves appressed-canescent, not hispid; coroUa 5—7 mm. wide. 



1. O. cinerea. 

 Leaves with the fine pubescence intermixed with hispid hairs on the lower 



surface; coroUa less than 5 mm. wide. 

 Plant low, graj-ish, not yellowish hispid above; racemes short, 2-ranked. 



2. O. suffruticosa. 

 Plant tall, yellowish hispid above; racemes in fruit elongate, 1-ranked. 



3. O. multicaalis. 

 Nutlets only one maturing, three abortive. 4. O. disticha. 



Leaves green, ha\-ing scattered short hairs with pustulate bases above, glabrous 

 beneath. 5. O. pustulosa. 



Fruit conical or ovoid; nutlets touching each other. 



Floral leaves long, many times longer than the flower-clusters; inflorescence 

 spike-Uke; biennials or short-Uved perennials. 

 Xutlets transversely rugose. 6. O. virgata. 



Xutlets smooth. . 7. O. spicata. 



Floral leaves comparatively short, little if at all surpassing the flower-clusters. 

 Xutlets rough. 



X'utlets decidedly -wing-margined. 



Branches of the inflorescence appressed, erect, in fruit elongate; nut- 

 lets merely muricate on the back. 8. O. setosissima. 

 Branches of the inflorescence spreading; nutlets rugose as well as muri- 

 cate on the back. 11. O. rirginensis. 

 Xutlets acute-margined, not winged. 



Calyx-lobes ovate-lanceolate, only sUghtly exceeding the mature nut- 

 lets; inflorescence paniculate, with rather few branches; caules- 

 cent perennials, often cespitose. 

 Corolla 7-8 mm. broad; nutlets mxuicate and cross-ribbed, but 

 not honeycomb-crested. 9. O. elata. 



