BORAGE FAMILY 717 



18. L. montana Greene. Stem slender, 2-4 dm. high, branched above, 

 strigose; branches ascending; basal leaves spatulate, 1-2 cm. long; stem-leaves 

 oblanceolate, 2-4 cm. long, cinereous-strigose ; corolla about 2 mm. broad; fruit 

 about 3 mm. wide. Dry hills: Mont. Wyo. Wash. B.C. Submont. Je-Jl. 



19. L. occidentalis (S. Wats.) Greene. Stem 2-6 dm. high, usually branched 

 above, with ascending branches, more or less hirsute, with spreading hairs; basal 

 leaves spatulate, 2-4 cm. long; stem-leaves linear or oblong, more or less hirsute; 

 corolla blue, 1.5-2 mm. wide; fruit about 3 mm. wide. E. Redowskii occidentalis 

 S. Wats. Sandy places and dry plains: Sask. Mo. N.M. Wash. My-Au. 



20. L. leucatricha Rydb. Stem 2-4 dm. high, slender, branched above, 

 densely pilose; basal leaves oblanceolate, 2-4 cm. long, softly pilose on both sides; 

 stem-leaves linear or oblong, numerous; corolla 3 mm. broad; fruit about 5 mm. 

 wide; nutlets about 2.5 mm. long, light, almost straw-colored; back strongly 

 muricate. Dry regions: Ariz. s Colo. s Utah. Son. Ap-Jl. 



21. L. collina Greene. Stem usually branched at the base, 1-2 dm. high, 

 rather simple, canescent-pilose; basal leaves numerous, spatulate, 1-3 cm. long, 

 canescent-pilose; stem-leaves oblong or linear; corolla usually whitish; back of 

 the nutlets white-tubercled. Dry places: w Tex. s Colo. Utah Ariz. Son. 

 My-Je. 



22. L. cupulata (A. Gray) Rydb. Stem simple below, branched above, 

 3-5 dm. high, softly pilose; basal leaves numerous, short-petioled; blades spatu- 

 late, 1-3 cm. long, softly pilose; stem-leaves linear, obtuse; corolla light blue or 

 whitish, about 3 mm. wide; fruit 56 mm. broad; nutlets 2.5 mm. long; back 

 muricate, with about 3 rows of tubercles along the mid-ridge. E. Redowskii 

 cupulata A. Gray. L. columbiana A. Nels. River bottoms and sandy soil: Nev. 

 Ida. Wash. Ore. Submont. Ap-My. 



23. L. heterosperma Greene. Stem much branched, 1-3 dm. high, hirsute, 

 green; basal leaves 1-2 cm. long, oblanceolate; stem-leaves lanceolate or oblong, 

 hirsute on both sides; bracts lanceolate, longer than the fruit; corolla blue, 1.5-2 

 mm. wide; fruit about 5 mm. wide. L. heterosperma homosperma A. Nels., a 

 form with all four nutlets cupulate. River valleys: S.D. Kans. Tex. Ariz. 

 Mont. Submont. My-Au. 



24. L. foliosa A. Nels. Stem diffusely and profusely branched from the 

 base, 1-2 dm. high; leaves broadly linear, 1-3 cm. long; bracts oblong-lanceolate, 

 longer than the fruit; corolla blue; nutlets nearly alike, papillose-scabrous and 

 distinctly ridged on the face. L. desertorum foliosa A. Nels. Gravelly slopes: 

 Wyo. Colo. Je-Jl. 



6. ASPERUGO (Tourn.) L. CATCHWEED, GERMAN MADWORT. 



Low annuals, with hispid foliage and few axillary flowers on recurved pedicels. 

 Calyx foliaceous, strongly reticulate-veiny, enlarged in fruit; lobes 5, flat, with 

 5 smaller ones intervening. Corolla with a short tube, enlarged throat, and 

 spreading 5-lobed limb. Stamens 5, included. Nutlets ovoid, granular-tuber- 

 cled, keeled, laterally attached above the middle to an elongate-conic receptacle. 



1. A. procumbens L. Stem slender, 2-4.5 dm. long; leaves oblong or the 

 lower spatulate, 1-4 cm. long; corolla about 2 mm. broad; fruiting calyx 8-12 

 mm. broad. Waste places: N.Y. D.C. Utah Alta.; adv. from Eu. My- 

 Au. 



6. EEITRICHIUM Schrader. 



Depressed pulvinate-cespitose perennials. Leaves short, entire, clustered 

 on the short branches. Flowers perfect, regular, in few-flowered racemes, or 

 subsolitary. Calyx 5-parted; lobes ascending in fruit. Corolla blue, rarely 

 white, funnelform; tube short. Nutlets 4, obliquely attached by their inner 

 angle to a conic receptacle, smooth, but with an obliquely truncate apex, the 

 truncate portion surrounded by an entire or toothed margin. [Omphalodes A. 

 Gray, in part, not Tourn.] 



Dorsal surface of the nutlets margined with a ridge-like ring, but not toothed. 



Plant strigose; dorsal surface of the nutlets papillose-hispid; corolla 7-9 mm. wide. 



1. E. Howardii. 



