1288 



PHACELIA 



BB, Foliage pinnatifid to compottnd. 

 c. Lvs. pinnatifidf with entire 



lobes 12. Orcuttiana 



ec. Lvs., at least lowest, lyrate.. 9. fimbriata 



ccc. Li's. twice pinnatifid 2. glandulosa 



AA. Plants not viscid -glandular, or 

 hardly so. 

 B. Foliage entire, or a few of the 

 lower lvs. pinnately lobed... 



0. Sa bit erect 1. humilis 



10. Uenziesii 



cc. Habit spreading 11. divaricata 



BB. Foliage parted to compound. 



c. Lvs. pinnately S-7-parted li. congesta 



CC. Lvs. pinnately 9-17-divided. . 4. tanacetifolia 

 For fear that this purely artificial key may not lie found 

 to apply with all garden plants, which are so much more 

 liable to variation, there is given below a key based on 

 more technical characters, derived from Gray's Synop- 

 tical Flora: 



BOTANIST'S KEY. 



1. Section Edphacelia. Ovules 4, a pair to each 

 placenta; seeds generally fewer, with reticulate or pit- 

 ted testa: corolla-tube with 10 laminate appendages in 

 pairs at the base of the stamens. 



A. Lvs. all simple and entire, or 



nearly so I . humilis 



AA. LvS.obloHfi iir liarroir, r.pilllinlely 

 toothed i'l rinii/K'ninl. 



B. Calyx not .■<(/, is, -hispid. 



C. Plant viscid-pubescent, glan- 

 dular 2. glandulosa 



cc. Plant pubescent, not viscid, 



or hardly so 3. congesta 



BB. Calyx more or less setose-hispid. 4. tanacetifolia 



2. Section Whitlavia. Fls. showy: seeds and ovules 

 few to numerous : appendages 5, small and truncate or 

 emarginate and attached to the base of each filament. 



A. Corolla purple or blue, varying to 

 white in cultivation, the tube 

 longer than the lobes. 



B. Lvs. orate or deltoid 5. Whitlavia 



BB. Li^s. cordate 0. campanularia 



AA. Corolla violet, rotate -campanu late, 



the lobes longer than the tube... 7. Parryi 



3. Section Cosmanthus. Ovules and seeds few to 

 numerous: appendages to the corolla none. 



A. Plant viscid 8. viscida 



AA. Plant sparsely hirsute 9. Simbriata 



4. Section Ectoca. Ovules several to numerous: 

 appendages to corolla 10, vertical and salient. 



A. Plant erect 10. Uenziesii 



AA. Plant diffusely spreading 11. divaricata 



5. Section Microgenetes. Ovules not pitted nor 

 favose - reticulated, as in the previous sections, but 

 strongly transversely corrugated. 



12. Orcuttiana 



PHACELIA 



1. hdmilis, Gray. Annual, unbranched or branched 

 from the base, 2-6 in. high, pubescent or inflorescence 

 often hirsute: lvs. spatulate oblong or oblanceolate, 

 generally obtuse, the lower rarely with 1-2 ascendmg 



1731. Phacelia Whitlavia (X K). 



1732. Phacelia viscida (X } 



lobes : spikes loosely paniculate or solitary : corolla 

 indigo-blue, rather deeply lobed, surpassing the usually 

 linear calyx-lobes; filaments moderately exserted, gla- 

 brous or sparingly bearded above. Calif, to Wash. — 'This 

 pretty little plant seems to be unknown to the trade, but 

 it is to be hoped it will not so remain. 



2. glanduldsa, Nutt. (Eutbca glanduldsa. Hook.). 

 \'isri(l-itulu'S(*ent and glandular, softly if at all hirsute, 

 tt-12 ill. or more high: lvs. irreg\ilarly and interruptedly 

 2-pinnatifid, or below divided; the numerous lobes ob- 

 long, small, somewhat incised, obtuse : calyx - lobes 

 oblong or spatulate: corolla about 2 lines long, bluish, 

 purplish or white, with lobes shorter than the tube; 

 stamens and 2-cleft style moderately or conspicuously 

 exserted : seeds with the minute reticulations even. 

 Northwest Tex. to Ariz, and Mex. 



3. congesta, Hook. Pubescent and commonly cinereous, 

 hardly viscid or glandular in the least, a foot or more 

 high: lvs. pinnately 3-7-divided or parted, and with a 

 few interposed small lobes, the main divisions oblong or 

 oval, incisely pinnatifid or irregularly lobed, the lower 

 ones mostly petiolate and the upper confluent; calyx- 

 lobes linear or somewhat spatulate; corolla blue, 3 lines 

 long, the lobes as long as the tube; stamens more or 

 less exserted: seeds reticulate scabrous, the fine sharp 

 meshes being, as it were, toothed at the junctions. Tex. 

 B.M. 3452. V. 5:154; 12:140. 



4. tanacetifdiia, Benth. Erect annual, roughish hir- 

 sute or hispid, not glandular, or above slightly so, 1-3 ft. 

 high: lvs. pinnately 9-17-divided into linear or oblong- 



