388 UTRICULARIACEAE. 



salient lv few toothed or pinnatifid; flowers spicate; corolla % in. long; stamens 

 2; anthers 2-celledj filaments glabrous. — (Adenostegia mollis Greene.) 

 Interior salt marshes: Vallejo; Suisuu Marshes. Aug. 



20. PEDICULARIS L. Lousewort. 



Perennial herbs with alternate pinnatifid leaves. Flowers in a bracteate 

 spike-like raceme. Calyx 2 to 5-cleft. Corolla tubular, strongly bilabiate; 

 upper lip galeate, arched and compressed; lower lip of 3 small rounded lobes 

 or teeth. Stamens 4, under the galea; anthers transverse, with equal cells. 

 Capsule flattened, oblique at apex, loculicidally 2-valved. (Latin pediculus, a 

 louse; of uncertain application.) 



1. P. densiflora Benth. Indian Warrior. Stems simple and erect, .9 

 to 12 in. high, commonly several from the scaly caudex; herbage soft-pubescent 

 or nearly glabrous; leaves pinnately divided or parted, the segments oblong 

 and doubly serrate-toothed or incised; flowers in a terminal dense (or in age 

 loose) raceme; bracts linear, ciliate or serrulate towards the apex, mostly shorter 

 than the flowers, crimson or crimson-tipped; calyx split to the base in front, 

 2-toothed behind, 3 to 4 lines long; corolla crimson, pink or (in shade) white, 

 1 in. long or more; galea large, slightly broader upwards, strongly arched; 

 lower lip small, of 3 rounded teeth; anther-cells acute at base; seeds few. 



Wooded hills throughout western California. Feb. -Mar. 



UTRICULARIACEAE. Bladderwort Family. 



Aquatic insectivorous plants. Calyx bilabiate. Corolla deeply bilabiate, 

 the lower lip larger, 3-lobed, spurred at the base in front. Stamens 2, an- 

 terior. Ovary superior, 1-celled, with a free central placenta bearing several 

 ovules. Fruit a 2-valved capsule. Seed with a straight embryo and no endo- 

 sperm. 



1. UTRICULARIA L. Bladderwort. 



Leaves capillary divided and bearing little bladders which possess a kind of 

 valve-like opening. Scapes 1 to few-flowered. Calyx-lips entire. Corolla 

 with a projecting palate on the lower lip, often closing the throat; upper lip 

 erect. (Latin utriculus, a little skin or leathern bottle.) 



1. U. vulgaris L. Common Bladderwort. Immersed stems 1 ft. long 

 or more, crowded with bi- or tri-pinnately parted leaves bearing many blad- 

 ders; scapes 5 to 12-flowered; pedicels recurved in fruit; corolla 6 to 9 lines 

 broad, with conical spur somewhat shorter than the lower lip. 



Olema; Santa Rosa, M. S. Baker; lower San Joaquin. The bladders have 

 an entrance closed by a valve opening inwards, so that small aquatic animals 

 having entered are unable to escape. 



OROBANCHACEAE. Broom-rape Family. 



Root-parasitic herbs, destitute of green color, with alternate scales in place 

 of leaves. Flowers complete. Calx persistent. Corolla tubular, more or less 

 bilabiate, the upper li|> 2 Lobed or entire, the lower 3-lobed. Stamens 4, didyna- 

 nmtis, inserted on 1 lie tube of the corolla. Ovary superior, 1-celled, pointed 

 with a long style which is curved at the apex. Capsule ovoid, 2 to 4-valved, 

 each valve bearing on its face 1 or 2 placentae. Seeds numerous, very small, 

 with endosperm; embryo minute. 



Calyx 5-cleftJ anther-cells separated from below upward, mucronate at base; capsule 

 2-valved l. Orobanche. 



Calyx truncate behind ami before, or with 1 to 4 teeth in front; anther-cells parallel, 

 blunt; capsule 4-valved 2. Boschniakia. 



