PHLOX FAMILY 689 



6. NAVARRETIA R. & P. 



Glabrous or viscid-puberulent, branched annuals. Leaves all alternate, 

 setaceously or spinulosely pinnatifid, or the lowest subentire. Flowers perfect, 

 in crowded, bracted, head-like clusters at the ends of the branches. Calyx-tube 

 short, scarious in the sinuses; lobes unequal, costate, pungently tipped, some of 

 them at least spinulosely toothed or cleft. Corolla salverform, with a funnelform 

 throat. Stamens adnate up to or nearly to the throat of the corolla. Seeds one 

 to many in each cell, commonly mucilaginous and producing spiracles, when 

 wetted. Capsule 1-3-celled,, partially dehiscent or indehiscent. 



Corolla white ; pericarp hyaline and mdeliiscent or irregularly bursting, closely adherent 

 to the mucilaginous seeds. 

 Calyx and the bases of the floral leaves long-hairy ; flowers nearly 1 cm. long. 



1. N. intertexta. 

 Glabrate or strigose, long-hairy only in the sinuses of the calyx; flowers about 7 mm. 

 long. 2. A^. minima. 



Corolla yellow; pericarp of the capsule firm, dehiscent. 3. N. Breweri. 



1. N. intertexta (Benth.) Hook. Stems erect, 1-2 dm. high, simpleor 

 widely branched, reflexed-strigose ; leaves glabrate or sparingly hairy, pinnatifid 

 or bipinnatifid, with filiform, spinescent divisions; bases of bracts and calyx 

 densely arachnoid- villous with white hairs; some of the calyx-teeth dentate; cor- 

 olla white, 9-10 mm. long; limb 2.5-3 mm. broad; stamens equally inserted, ex- 

 serted. Gilia interlcxta Steud. Plains and sandy places: Wash. — Mont. — ^Ida. — 

 Calif. Submont. My-Au. 



2. N. minima Nutt. Stem erect, simple, or branched near the base, 1-5 

 cm. high, glabrate or nearly so; leaves glabrous, pinnatifid, with filiform-subulate, 

 acerose divisions; bracts glabrous; calyx slightly hairy in the sinuses; corolla 

 white, about 7 mm. long; limb 1-1.5 mm. broad; tube shorter than the calyx; 

 stamens equally inserted in the throat. G. minima A. Gray. Bottom lands and 

 sandy places: Wash. — Sask. — Neb. — Ariz. — CaUf. Plain — Suhmont. My-Jl. 



3. N. Breweri (A. Gray) Greene. Stem simple or branched below, 1-10 cm. 

 high, glandular-puberulent; leaves pinnatifid, glandular-puberulent, with subu- 

 late-acerose divisions; bracts and calyx not villous, merely puberulent; corolla 

 6-7 mm. long, shorter than the calyx; limb 1.5 mm. wide; stamens equally in- 

 serted in the throat, exserted. G. Breweri A. Gray. Foot-hills and sandy places: 

 Wash.— Wyo.— Colo.— Calif. My-Au. 



7. LEPTODACTYLON Nutt. 



Much branched undershrubs or some species herbaceous except the base. 

 Leaves alternate, or rarely opposite, with smaller ones fascicled in the axils, 

 numerous, palmately 3-5-parted, usually acerose-subulate, pungent. Flowers 

 showy, solitary or in small clusters, sessile. Calyx tubular or campanulate, with 

 subulate teeth, ruptured by the fruit. Corolla trumpet-shaped, with a funnel- 

 form throat, yellow or reddish or lilac. Filaments equally adnate to the throat 

 of the corolla; anthers included in the throat of the corolla. Capsule many- or 

 few-seeded. Seeds neither mucilaginous, nor with spiracles. 



Leaves alternate; stem woody throughout. 



Plant pulvinate-cespitose; corolla 4-merous. 1. L. caespitosum. 



Plant suffruticose, with erect branches; corolla 5-merous. 

 Leaves and their divisions ascending, straight. 



Leaves 6-15 mm. long. 2. L. pungens. 



Leaves thick, 2-5 mm. long. 3. L. brevifolium. 



Leaves and their divisions spreading-recurved, stout. 4. L. patens. 



Leaves opposite; stem woody only at the base. 



Leaves decidedly pungent; ovules numerous. 5. L. Watsonii. 



Leaves scarcely pungent; ovules 2-3 in each cell. 6. L. NuUallii. 



1. L. caespitosum Nutt. Densely pulvinate-cespitose perennial, with 

 woody caudex; leaves densely crowded, slightly cihate below, about 5 mm. long, 

 usually 3-parted, with subulate straight pungent divisions; calyx 6-8 mm. long; 

 teeth subulate; corolla light yellow, trumpet-shaped, 12-15 mm. long; lobes 4 

 mm. long. Gilia pungens caespitosa A. Gray. Dry hills: wNeb. — Wyo. — Utah. 

 Plain — Submont. My-Jl. 



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