FLOWERING PLANTS AND FERNS OF ARIZONA 71* 



times on open slopes. May (and perhaps later). Montana to British 

 Columbia, south to Arizona and California. 



The flower color is commonly salmon or apricot, but varies to 

 cream. 



3. GILIA 



Plants of diverse habit, commonly herbaceous; leaves' simple or 

 compound; calyx gamosepalous, tubular or campanulate, 5-lobed, 

 the lobes often spinescent; corolla regular or slightly irregular, 



campanulate, funnelform. or salverform. 



A difficult genus, partly because of its size, but the numerous 

 segregate genera accepted by some authorities seem to the writers to 

 be of only subgeneric rank. Many of the species have beautiful 

 flowers and are well worth cultivating. 



Key to the species 



1. Leaf blades pinnatifid, with all of the lobes sharply setose and the lower ones 

 reduced to long setae: stems decumbent or prostrate: calyx teeth long- 

 setose: corolla pale blue or whitish; stamens more or less exserted: Subgenus 

 Lan.gloisia (2). 

 2. Corolla distinctly irregular, more or less bilabiate; stamens more or less 

 declined at apex (3) . 

 3. Corolla lobes not more than half as long as the tube, the latter little if at 

 all longer than the calyx 1. G. schottii. 



3. Corolla lobes nearly equaling the tube, the latter distinctly longer than 



the calyx 2. G. matthew.-ii. 



2. Corolla regular or nearly so: stamens not or scarcely declined (4). 



4. Corolla lobes little shorter than the tube 3. G. prxr-TATA. 



4. Corolla lobes about one-third as long as the tube 4. G. setosis>ima. 



1. Leaf blades commonly pmnaufid, but none of the lobes reduced to setae or, if 



nearly so (in subgenus Xavarretia), then the corolla white or yellow with a 



limb less than 2 mm. wide (5). 



5. Stamens inserted at different levels on the corolla tube, the anthers appearing 



at different levels, not exserted from the throat of the corolla: ovules 



normally solitary in each cell of the ovary: corolla narrowly funnelform, 



not more than 10 mm. long: Section Phiogastrum (6). 



6. Leaves mostly opposite, the blades entire: corolla not more than \% times 



as long as the calyx, pink or lavender; flowers axillary, or clustered at 



the ends of the steins: stems up to 12 cm. long 5. G. gracilis. 



6. Leaves alternate, with some or all of the blades pinnately or subpalmately 



parted or divided; corolla about twice as long as the calyx, bright blue : 

 flowers in subcorymbose or subcapitate, terminal clusters; stems 15 



cm. long or longer 6. G. gilioide-. 



5. Stamens inserted at the same level or nearly so, or the anthers appearing at 



nearly the same level, often exserted from the throat of the corolla; 



ovules 2 or more (rarely solitary) in each cell of the ovary (7). 



7. Calyx teeth unequal (8). 



8. Corolla campanulate (9). 



9. Flowers crowded in few-flowered clusters, sessile, or on pedicels much 

 shorter than the calyx; corolla white, or tinged or marked with 

 purple, 6 to 8 mm. long; leaf blades entire or 3-parted, often 

 opposite; stems not more than (usually much less than* S cm. 



long 7. G. DA( TYLOPHYLLFM. 



9. Flowers solitary, on pedicels 1 to several times as long as the calyx; 



corolla yellow, not more than 5 mm. long; leaf blades all entire, 

 mostly alternate; stems usually 10 to 20 cm. long. 



8. G. fii.iformis. 

 8. Corolla funnelform or nearlv tubular: inflorescences dense, subcapitate 

 HO). 



10. Inflorescence sparsely villous; anthers oval or nearly orbicular, not 



sagittate; corolla white or yellow, very narrow, the tube shorter 

 than the calyx: Leaves pinnatifid, the lobes needlelike, rigid, 

 spinescent, as are also the calyx teeth: Subgenus Xavarretia (11). 



