5. LOESELIA 



Plant perennial, the stems somewhat woody below, with exfoliating 

 bark; herbage glandular -hispidulous ; leaves simple, mostly alternate, 

 the blades narrow, spinulose-serrulate ; flowers solitary or in pairs, 

 closely invested by the scarious, entire or few-toothed bracts; corolla 

 pale violet with darker spots. 



1. Loeselia glandulosa (Cav.) G. Don, Hist. Dichl. PL 4: 248. 1837. 



Hoitzia glandulosa Cav., Icon. PI. 4: 45. 1797. 



Santa Kita Mountains, Pima County (Pringle in 1884), Sycamore 

 Canyon near Kuby, Santa Cruz County (Hardies and Proctor 6093), 

 about 4,000 feet, flowering almost throughout the year. Southern 

 Arizona to Central America. 



105. HYDROPHYLLACEAE. Waterleaf family 



Plants herbaceous or shrubby; eaves simple or pinnate, alternate or 

 (seldom) opposite; flowers perfect, regular or nearly so, 5-merous, 

 mostly in cymes, these often elongate, 1-sided, and racemelike; 

 stamens inserted on the corolla, alternate with its lobes; pistil of 2 

 united carpels, the ovary mostly 2-celled, the styles 2, or else 1, and 

 2-cleft; fruit a longitudinally dehiscent capsule; seeds often pitted or 

 reticulate. 



Key to the genera 



1. Plant an aromatic, somewhat glutinous shrub; leaves evergreen, the blades 

 coriaceous 8. Eriodictyon. 



1. Plants herbaceous or barely suffrutescent, not glutinous; leaves not evergreen 

 or coriaceous (2). 

 2. Calyx lobes very unequal, the 3 outer ones suborbicular, cordate, enlarged and 

 veiny in fruit; inflorescence loosely racemose; stamens included. 



7. Tricardia. 

 2. Calyx lobes not, or not conspicuously, unequal (3). 



3. Flowers axillary, solitary or in small dense leafy clusters; plants annual; 



leaves simple, entire, not clasping at base 6. Nama. 



3. Flowers in racemelike or naked headlike clusters, these mostly terminal or 



forming terminal panicles or, if the flowers scattered and axillary, 



then the herbage prickly and the leaves pinnatifid, with clasping 



bases (4). 



4. Corolla marcescent-persistent, pale yellow or cream-colored, campanulate; 



plants annual; flowers in loose racemes; stamens not exserted. 



5. Emmenanthe. 

 4. Corolla deciduous soon after anthesis, blue, purple, or white (5). 



5. Flowers in scorpioid or circinate racemes or, if not so, then the flowers 

 not in long-peduncled headlike clusters and the leaf bases not 



clasping _ 4. Phacelia. 



5. Flowers not in scorpioid or circinate racemes (6). 



6. Inflorescences short, headlike, long-peduncled, terminal; plant 

 perennial; leaves long-petioled, the petioles not dilated at base; 



stamens much-exserted 1. H ydroph yllum. 



6. Inflorescences loosely racemose or cymose, or the flowers solitary 



in the axils; plants annual; leaves (at least the upper ones) 



sessile and auriculate-clasping, or the petioles with dilated, 



more or less clasping bases; stamens not exserted (7). 



7. Herbage prickly with stout, white, often retrorse or hooked hairs; 



calyx with a bractlike appendage in each sinus; corolla rotate, 



8 to 14 mm. in diameter 2. Nemophila. 



7. Herbage not prickly, hirsutulous and glandular, at least in the 

 inflorescence; calyx not appendaged; corolla campanulate, 

 not more than 4 mm. in diameter 3. Ellisia. 



