708 HYDROPHYLLACEAE 



5-cleft; lobes similar or nearly so. Corolla yellow or yellowish, campanulate or 

 funnelfonn. Stamens equally inserted low down in the corolla-tube. Ovary 

 more or less 2-celled by the intrusion of the jjlacentae; style 2-cleft at the apex. 

 Capsule loculicidal; seeds minutely reticulate. 



Leaf-blades lanceolate to oblong, obtuse, laciniate-dentate. 1. M. foliosa. 



Leaf-blades obovate, spatulate or oval, coarsely round-toothed. 



Peduncles usually longer than the leaves; corolla and capsule equaUing the calyx. 



2. M. scopulina. 

 Peduncles shorter than the leaves; corolla and capsule shorter than the calyx. 



3. M- salina. 



1. M. foliosa (M. E. Jones) A. Brand. Stem minutely glandular-puberulent, 

 branched, 2-5 cm. high; leaf-blades 1-2 era. long; calyx 2 mm. long m flower, 4 

 mm. in fruit; lobes linear or linear-spatulate; corolla ahnost equalling the calyx, 

 barely lobed. Emmenanthe foliosa M. E. Jones. Alkaline soil: Utah. Sub- 

 inont. Je. 



2. M. scopulina (A. Nels.) Rydb. Stem branched near the base, ascend- 

 ing, 1-3 cm. long, pilose; leaf -blades crenately lobed to entire, 5-12 mm. long; 

 sepals linear, obtuse, less than 3 mm. long in flower, 4 mm. in fruit. Emmenanthe 

 scopulina A. Nels. Dry sandy shales: Colo. — Mont. Submont. My. 



3. M. salina (A. Nels.) Rydb. Stem short and thick, 2 cm. high or less; 

 leaf-blades entire, dentate, or round-lobed, 7-15 mm. long; calyx about 3 mm. 

 long; lobes linear. Emmenanthe salina A. Nels. E. dispar M. E. Jones. River 

 flats: Wyo. Je. 



7. EMMENANTHE Benth. Whispering Bells. 



Erect caulescent annuals. Leaves alternate, pinnatifid, with toothed seg- 

 ments. Flowers perfect, regular, in short paniculate leafy-bracted racemes, on 

 drooping pedicels. Calyx 5-cleft, with broad ovate lobes. Corolla broadly cam- 

 panulate, cream-colored, persistent. Stamens slightly adnate to the base of the 

 corolla. Style 2-cleft above, deciduous; placenta conspicuously dilated in the 

 axis. Capsule loculicidal; seeds somewhat rugosely alveolate-reticulate. 



1. E. pendulaeflora Benth. Erect annual; stem 1-3 dm. high, villous- 

 glandular; leaves pinnately parted or divided, with numerous oblong, sometimes 

 toothed lobes; calyx-lobes ovate-lanceolate, acute, 6-7 mm. long; corolla nearly 

 1 cm. long; seeds oblong-oval, rugosely alveolate-reticulate. Dry sandy soil: 

 Cahf.— s Utah— Ariz.— L. Calif. L. Son. Mr-Au. 



8. CAPNOREA Raf. 



D^arf stemless perennials. Leaves basal, oblong or spatulate, entire. Flow- 

 ers singly on elongated pedicels from the axils of the leaves. Calyx 5-7-parted; 

 lobes linear-lanceolate, often unequal. Corolla from campanulate or funnelform 

 to saucer-shaped, deciduous, without appendages within. Stamens inserted in 

 the base of the corolla, more or less hairy at the base. Ovary 1-celled, with 2 

 more or less intruding placentae; ovules 20 or more on each placenta; style 2- 

 cleft at the apex. Capsule locuhcidal, many-seeded. Seeds minutely reticulate. 

 [Hesperochiron S. Wats.] 



Corolla saucer-shaped or rotate. 



Calyx almost glabrou.^, except the ciUate margins ; leaves not distinctly venulose. 



1. C. puniila. 

 Calyx long- villous at the base; leaves distinctly venulose. 2. C. nervosa. 



Corolla campanulate or funnelform. 



Calyx-lobes oblong or lanceolate, obtuse. 



Corolla 12-15 mm. long; pubescence of the plant short. 3. C. Watsoniana. 



Corolla 7-10 mm. long; pubescence longer on the peduncle; calyx densely villous. 



4. C. incana. 

 Calyx-lobes Unear or linear-lanceolate, acute. 5. C. nana. 



1. C. pumila (Dougl.) Greene. Leaves ob lanceolate or elhptic, tapering 

 into short petioles, 4-7 cm. long, glabrous except on the margins; scape 3-7 cm. 

 long; calyx-lobes equal, lanceolate, 5-7 mm. long; corolla 10-15 mm. high. Hill- 

 sides: Wash. — Ida. — Utah— n Calif. Submont. Je-Jl. 



