PHACELLA FAMILY. 



433. 



1. HYDROPHYLLUM L. Water-leaf. 



Perennial herbs with horizontal rootstocks. Leaves alternate or 

 mainly radical, pinnate or pinnately parted, long-petioled. Flowers 

 in capitate cymes. Calyx without appendages. Corolla campanu- 

 late, 5-lobed, the tube with a nectar-bearing grooved appendage oppo- 

 site each lobe. Stamens exserted, the filaments hairy at the middle. 

 Style filiform, exserted. Ovary hispid. Capsule 2-valved, 1 to 4- 

 seeded. (Greek hudor, water, and phullon, leaf.) 



1. H. occidentale Qmy. Twelve to 17 in. high; leaves 7 to 12 

 in. long; leaflets 9 to 15. incised, the terminal ones not distinct: 

 peduncles generally exceeding the leaves, bearing 1 or 2 eapitate 

 clusters of bluish flowers. 



Summit of Mt. Diablo, Brewer, no. 1176; Sherwood Valley. Men- 

 docino Co., Davy, no. 5195; Sierra Nevada. 



H. capitatum Dougl. var. alpixum. Wats. Almost stemless 

 plant; rootstock with clusters of fleshy-fibrous roots; leaves roundish 

 or ovate in outline, pinnately lobed or divided, 2 to 3 in. long, much 

 shorter than the petiole; flowers in a loose cyme on a short peduncle, 

 surpassed by the leaves. — Sierra Nevada. 



2. NEMOPH I LA Xutt. 

 Delicate low annuals. Leaves opposite, or the uppermost alter- 

 nate, more or less pinnate. Flowers mostly showy, solitary or in- 

 clined to be racemose. Calyx with a reflexed appendage in each 

 sinus, accrescent. Corolla rotate to broadly campanulate, in all our 

 species longer than the calyx, with 10 internal appendages at base. 

 Stamens shorter than the corolla, inserted near its base. Anthers 

 usually sagittate-oblong. Styles more or less 2-cleft. Ovules 4 to 20. 

 Seeds carunculate, the caruncle later deciduous. (Greek nemos, a 

 grove, and phileo, to love.) 



Flowers small; corolla white or whitish, 2 to o lines broad; leaves opposite 

 or the upper often alternate, mostly longer than the peduncles, slender- 

 petioled 1. X par vi flora. 



Flowers large. 



Leaves all opposite, not auricled, shorter than the peduncles. 

 Corolla bright blue (or pale blue or white in the vars.) . 2. X ins ignis. 

 Corolla with velvet-purple center, the upper portion white with purple 



veins 3. X venosa. 



Leaves mostly alternate, auricled at base, shorter than or equaling the 

 peduncles 4. X aurita. 



I. N. parviflora Dougl. Stems slender and weak, trailing or pro- 

 cumbent; leaves pinnately lobed, parted, or divided into 8 to 5 lobes, 

 but exceedingly diverse as to outline and segmentation; calyx- 

 appendages rather conspicuous, or sometimes almost none; corolla 

 white or whitish, 2 to 5 lines in diameter, narrowly campanulate to 

 almost rotate, the lobes longer than the tube; scales adherent by one 

 edge; filaments filiform, inserted on the very base of the corolla: seeds 

 1 to 4, often deeply pitted. 



Common throughout California in shady places in the Coast Ranges 

 and Sierra Nevada. Mar.-Apr. The studies of Mr. H. P. Chandler 

 on this species show that the corolla-scales are remarkably inconstant in 

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