522 HYDROPHYLLACEAE 



9. LEMMONIA A. Gray, Proc.Amer. Acad. 12:162. 1877. 



Low, prostrate, matted, dichotomously branching, pubescent annuals from a slender 

 taproot. Leaves alternate, entire, clustered in a basal rosette and at the ends of the 

 branches. Flowers solitary in the upper axils and angles of the branches, and several in 

 congested, non-scorpioid terminal cymes, sessile. Calyx divided nearly to the base, the 

 lobes subequal. Corolla white, deciduous, campanulate, constricted at the point of stamen- 

 attachment, shorter than the calyx. Stamens included, unequal, equally inserted toward 

 the base of the corolla-tube and coherent by the lateral dilation of their bases ; other ap- 

 pendages wanting. Style divided to the base. Mature capsule falsely bilocular by the 

 intrusion and union of the narrow placentae, membranaceous, loculicidally dehiscent. 

 Ovules 2-3 to each placenta, borne superposed, the placentae narrow. Seeds usually about 

 4, almost black, ovoid-oblong, irregularly corrugated. [Named in honor of J. G. Lemmon, 

 an early Californian botanist.] 



A monotypic genus of the southwestern United States and adjacent Mexico, Lemmonia californica A. Gray. 



1. Lemmonia californica A. Gray. Lemmonia. Fig. 4139. 



Lemmonia californica A. Gray, Proc. Amer. Acad. 12: 162. 1877. 



Branches prostrate, 2-10 cm. long. Leaf-blades oblanceolate, 3-8 mm. long, 2-3 mm. broad, 

 tapering gradually to the base, sericeous; calyx-lobes linear, 2.5-3 mm. long in flower, up to 

 5 mm. long in fruit, densely soft-hirsute; corolla about 2 mm. long and nearly as broad, shal- 

 lowly Icbed, the lobes oval, about 0.8 mm. long; stamens glabrous; style 0.5-0.8 mm. long; 

 seeds about 1 mm. long. 



Sandy places, Transition and Boreal Zones; hills and mountains on the northern and western borders of the 

 Mojave Desert to northern Lower California; southern and northern Coast Ranges, California. Type locality: 

 headwaters of the Mojave River. May-June. 



10. nAmA L. Syst. Nat. ed. 10. 2:950. 1759. Not Nama L. 1753. 



Nomen conservandum. 



Low, branching, often prostrate and matted, pubescent, annual herbs or somewhat 

 woody perennials, from slender taproots. Leaves alternate, entire or rarely dentate, nu- 

 merous on the stems. Flowers in reduced terminal, non-scorpioid cymes and/or solitary 

 in the upper leaf-axils and angles of the branches, subsessile. Calyx divided nearly to the 

 base, the lobes subequal, or divided only partially and the tubular base adherent to the 

 inferior ovary. Corolla purple to white, deciduous, tubular to broadly funnelform, ex- 

 ceeding the calyx. Stamens included, borne on the corolla tube, unequal or unequally 

 inserted, appendaged at base, the appendages with or without a free edge, usually minute 

 or obsolete. Style included, divided to the base or only shallowly 2-lobed at apex. Mature 

 capsule falsely bilocular by the intrusion of the placentae, linear-oblong to broadly ovoid, 

 membranaceous and loculicidally dehiscent, or semi-cartilaginous and both septicidally 

 and loculicidally dehiscent. Ovules numerous, borne on narrow, projecting placentae. 

 Seeds usually numerous, brown, ovoid, usually reticulate and sometimes shallowly pitted. 

 [Name Greek, meaning a spring.] 



A genus of 40-50 species, principally of the southwestern United States and northern Mexico; a few species 

 in southern South America and one in the Hawaiian Islands. Type species, Nama jamaicense L. 



Calyx only partially divided, the tubular base adherent to the inferior ovary; calyx-lobes recurved and indurate in 



fruit. 5. AT. stenocarpum. 



Calyx divided nearly to the base, the ovary superior; calyx-lobes usually erect and not indurate. 

 Perennial, more or less woody, at least at base; flowers numerous in terminal cymes. 



Leaves coarsely dentate; cymes naked, capitate. 1. A''. Rothrockii. 



Leaves entire; cymes leafy-bracted, not capitate. 2. N. Lobbii. 



Annual, herbaceous throughout; flowers solitary, or few in greatly reduced terminal cymes. 

 Style shallowly 2-lobed at apex. 



Corolla tubular, 3-5 mm. long, 1-3 mm. broad. 3. A^. densum. 



Corolla broadly funnelform, 10-17 mm. long, 7-12 mm. broad. 4. N. aretioides. 



Style divided to the base. 



Corolla broadly funnelform, 8-15 mm. long, 6-12 mm. broad; calyx-lobes linear-lanceolate, 5-8 mm. 

 long; style 2-5 mm. long. 



Plants usually erect; seeds numerous, dark brown. 6. A^. hispidum. 



Plants usually prostrate, matted; seeds few (15-25), yellowish brown. 7. N. demissum. 

 Corolla tubular to nearly salverform, 3-5 mm. long, 2-3 mm. broad; calyx-lobes linear to linear- 

 oblanceolate, 3-4 mm. long; style 1-1.5 mm. long. 



Leaf-blades ovate, 2-5 mm. long; calyx densely hirsute. 8. N. pusillnm. 



Leaf-blades oblanceolate, 5-10 mm. long; calyx sparsely pubescent. 9. N. depressum. 



1. Nama Rothrockii A. Gray. Rothrock's Nama. Fig. 4140. 



Nama Rothrockii A. Gray, Bot. Calif. 1: 621. 1876. 



Low, matted, leafy perennials from a slightly woody base, hirsute, hispid, and very glandular 

 throughout, 1.5-3 dm. tall. Leaf-blades oblong to lanceolate, 2-5 cm. long, 0.5-1.5 cm. broad, 

 coarsely dentate, hispid and glandular, venose beneath, tapering at base into a short petiole; 



