730 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



1. Ellisia micrantha (Torr.) Brand, Pflanzenreich IV. 251: 42. 1913. 



Phacelia micrantha Torr., U. S. and Mex. Bound. Bot. 144. 



1859. 

 Eucrypta micrantha Heller, Muhlenbergia 2: 163. 1906. 



Throughout the southern and western parts of the State, 4,000 feet 

 or (usually) lower, common, February to May. Western Texas to 

 southern Utah and southern California. 



2. Ellisia torreyi A. Gray, Amer. Acad. Arts and Sci. Proc. 20: 302. 



1885. 



Eucrypta chrysanthemifolia (Benth.) Greene var. bipinnatifida 

 (Torr.) Constance, Lloydia 1: 147. 1938. 



Widely distributed and common in the southern and western parts 

 of the State, 3,000 feet or lower, February to March, type of E. 

 torreyi from Yampai Valley {Newberry in 1858). Arizona, southern 

 California, and Baja California. Probably only varietally distinct 

 from E. chrysanthemifolia. 



4. PHACELIA " 



Plants herbaceous, annual or perennial, mostly pubescent; leaves 

 mostly alternate, simple and entire to pinnatifid, or pinnate; flowers 

 mostly in 1 -sided false racemes (modified cymes) ; corolla narrowly 

 funnelform to broadly campanulate, usually with vertical folds or 

 plates in the tube ; style 2-clef t or 2 -divided ; seeds variously roughened, 

 often boat-shaped. 



Contact with species having glandular pubescence, such as P. 

 crenulata and P. pedicellata, causes dermatitis in susceptible persons. 



Key to the species 



1. Leaves entire or irregularly dentate or crenate, not pinnate or pinnatifid; 



plants annual; stems not more than 30 cm. long; flowers in simple, mostly 



few-flowered racemes; stamens and style not exserted (2). 



2. Stems rather stout, sparingly branched; leaf blades slightly fleshy, broadly 



ovate to suborbicular, subcordate, shallowly (seldom deeply) crenate; 



racemes rather dense in fruit; flowers nearly sessile; seeds transversely 



corrugate; corolla about 5 mm. long, cylindric-campanulate. 



1. P. PACHYPHYLLA. 



2. Stems slender, weak, often much branched; leaf blades not fleshy; racemes 

 becoming loose in fruit; flowers distinctly pediceled; seeds not trans- 

 versely corrugate (3) . 

 3. Fruiting pedicels longer (often much longer) than the calyx; leaf blades 

 orbicular or nearly so, thin; petiole equaling or longer than the 

 blade (4). 

 4. Corolla 5 to 10 mm. long, white or purple; plant glandular-puberulent; 

 stems up to 12 cm. long; leaf blades truncate or subcordate at base, 

 entire or sparingly crenate 2. P. filiformis. 



4. Corolla 10 to 15 mm. long, lilac purple; plant viscid-pubescent or nearly 



glabrous; stems up to 30 cm. long; leaf blades deeply cordate at 



base, crenate, often coarsely so 3. P. glechomaefolia. 



3. Fruiting pedicels mostly shorter (often much shorter) than the calyx (5). 



5. Corolla much longer than the calyx; leaf blades nearly or quite as wide 



as long, coarsely crenate or dentate; herbage soft-pubescent and 

 glandular-puberulent (6) . 

 6. Leaf blades thin; filaments glabrous 4. P. lemmoni. 



1S Reference: Voss, John W. a revision of the phacelia crenulata group for north America. 

 Torrey Bot. Club Bui. 64: 81-96, 133-144. 1937. 



