354 LABIATAB. 



geniculate or curved into an arc of a circle jusl below the limb. Stamens 4, 

 wiili the anther-cells divaricate; filaments capillary, blue or violet, spirally 

 coiled in the bud, in anthesis very much exserted, ascending between the 

 deeply parted upper Lobes of the corolla and curved outward and downward. 

 Nutlets rugose-reticulate. (Greek trichos, hair, and stemon, stamen.) 



Stems densely leafy; leaves sessile 1. T. lanccolatum. 



Stems sparsely leafy; leaves petioled 2. T. laxum. 



1. T. lanceolatum Benth. Vinegab Weed. Camphor Weed. Annual, 

 simple or branching from near the base, 6 to 11 in. high, very leafy; herbage 

 cinereous or villous-pubescent and minutely glandular; leaves lanceolate, 

 acuminate, sessile, or the lowest subsessile, with 3 to 5 strong almost parallel 

 nerves or ribs, 1 in. long; cymes short-peduncled or nearly sessile; calyx vil- 

 lous; corolla almost filiform, somewhat pubescent. 



Dry plains and low hills throughout the Coast Ranges, Sierra Nevada foot- 

 hills and Southern California. A bee-plant of importance, abounding over 

 extensive areas. Aug.-Sept. 



2. T. laxum Gray. Turpentine Weed. Annual, simple or branching, 

 1 ft. high or less, minutely pubescent, sparsely leafy; leaves lanceolate or 

 oblong-lanceolate, acuminate but obtusish, pinnately veined, 1 to 1% in. long, 

 on slender petioles; cymes peduncled, rather loose; corolla almost glabrous. 



Stream beds or low summer fields of the North Coast Eanges: Sonoma Co.; 

 Napa Co.; Putah Creek and northward. Aug.-Sept. 



T. LANATUM Benth. Romero. Leafy shrub 2 to 3 ft. high, remarkable for 

 its virgate purple-woo ly spikes and long capillary stamens and style. — Monterey 

 Co. to San Diego. T. oblongum Benth. Small annual, the corolla hardly 

 surpassing the calyx if at all. — Sierra Nevada, at the higher altitudes. 



2. SCUTELLARIA L. Skull-cap. 

 Ours perennial herbs, the flowers always solitary and either in axillary 

 pairs or, when the leaves are reduced, forming terminal spikes or racemes. 

 Calyx bilabiate, both lips entire, the upper with a scale-like or crest-like pro- 

 jection on the back, in anthesis campanulate, after anthesis closed, and in 

 fruit splitting to the base. Corolla with a long-exserted tube naked within; 

 upper lip galeate, cm ire or barely notched, the lateral lobes of the lower lip 

 more or less attached to it so that it appears 3-lobed, the middle lobe seeming 

 to constitute the whole lower lip. Stamens 4; anthers ciliate-pilose. Upper 

 fork of style short or none. Nutlets rarely wing-margined. Embryo curved; 

 caulicle short, incumbent. (Latin scutella, a dish, on account of the con- 

 spicuous protuberance on the fruiting calyx.) 



tocks filiform, hearing tubers; flowers violet-purple 1. 5". tuberosa. 



RootStocks not tuber-bearing; flowers whitish 2. 6". calif ornica. 



1. S. tuberosa Benth. Blue Ski ll-cap. Stems 3 to 5 in. high, from 

 tuberous rootstocks, the tubers oblong, 3 to 8 lines long; herbage pubescent; 

 thin, few -toothed ; radical and lower leaves oval, purplish beneath (as 

 also the lower cauline), on petioles as long as the blade; upper cauline ovate, 

 the petioles commonly Bhort; corolla violet-purple, 7 to 9 lines long; middle 

 lobe of lower lip somewhat spreading, much larger than the galeate upper lip; 



nut lets muricate. 



Loamy soil of sh;idy woods or brush in the hills or in sandy valleys: Const 

 Ranges south to Southern California. Apr. May. Not reported from the 

 inner North Const Ranges, nor from the inner South Coast Ranges south of 



