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76 POLEMONIACE^. (gILIA FAMILY.) 



Leaves various but never simply pinnate with entire leaflets Gilla. 1 



Leaves simply pinnate; leaflets linear to ovate; corolla short Polemonium. 2 



1. GILLA- Ruiz & Pav. 



Corolla funnel-form, salver-form, or sometimes short-campanulate or rotate, regular. 

 A polymorphous genus, the sections having almost generic dififerences. 



Series I. Stamens attached to the corolla at unequal heights. 



Mostly \dscid-pubescent or glandular; all but some of the lower leaves alternate; sta- 

 mens exserted. § Collomia. 



Series II. Stamens equally inserted, but sometimes with unequal filaments. 



* All of tlie leaves opposite, at least on the main stems, sessile and pcdmately parted or 



rarely entire. {Seeds mucilaginous in water.) 



Corolla from short funnel-form to almost rotate; the lobes obovate; filaments slender; 

 anthers oval. Low or slender, loosely and mostly small flowered annuals; the leaves 

 with filiform or setaceous divisions, appearing as if whorled. In ours, the flowers on 

 filiform pedicels, loosely paniculate. § 1. Dactylophyllum, 



Corolla salver-form, but the tube shorter than the calyx, the broad cuneate-obovate 

 lobes slightly crenulate, strongly convolute in the bud; stamens inserted low on the 

 corolla tube, included; erect, smooth; leaves entire or 3-o-divided. § 2. Linanthus. 



Corolla salver-form, with usually a filiform elongated tube, and the throat sometimes 

 abruptly dilated; stamens inserted in the throat; anthers short. Erect annuals, with 

 leaves as in the last, and the flowers in a terminal capitate cluster. § 3. Leptosiphon. 



* * All the leaves alternate and palmately parted. 

 Corolla similar to § 3. Stems woody; leaves much fascicled in the axils, 3-7 parted, 

 rigid; flowers sessile, solitary or few at the ends of short branches. § 4. Leptodactylon, 



• * * All, or all hut the lowest leaves alternate and pinnately compound, cleft or toothed, 



or rarely entire. 



Flowers capitate-glomerate or densely clustered, leafy-bracted; bracts and calyx-lobes 

 often laciniate, rigid acerose or spinulose-tipped. Corolla slender tubular- funnelform, 

 with small oblong lobes; cells of the ovary and stigmas sometimes only 2. Annuals, 

 mostly viscid-pubescent, never white- woolly, with once or twice pinnatifid leaves, their 

 lobes commonly pungent; the bracts sometimes palmately cleft. § 5. JSfavarretia. 



Flowers, inflorescence, etc., nearly as in § 5; but the anthers always exserted; corolla 

 salver- form, more conspicuous; plants all white-woolly, not viscid. § 6. Hugelia. 



Flowers capitate-glomerate, or panicled, or scattered, usually bractless; corolla (blue, 



