MINT FAMILY 389 



Jepson 4919; Rogers Valley, n. of Auberry, Fresno Co., Jepson 12,898; Arnold Mdw., Madera Co., 

 A. L. Grant 1354; Cedar Brook, Mariposa Co., Jepson 15,968; Big Mdw., betw. Hazel Green and 

 Yosemite, Jepson 14,885 ; betw. Mather and Crocker sta., Tuolumne Co., Jepson 4634 ; Hetch- 

 Hetchy, Jepson 3443 ; Dufifield Canon, Soulsbyville, Tuolumne Co., Jepson 7680 ; Poor Lake, w. 

 Mono Co., Ottley 1127; Fallen Leaf, Eldorado Co., Newlon; Bear Valley, Nevada Co., Jepson 

 14,886; Butte Mdws., Butte Co., EeHer 11,620; Meadow Valley, Plumas Co., Jepson 10,642; Egg 

 Lake, Modoc Co., M. S. Baker; Mt. Shasta, Palmer 2492. North Coast Eanges: Lower Lake (3 mi. 

 w.). Hoover 3814; Eel River, n. of Potter Valley, Mendocino Co., Purpus 1250; Buck Mt., Hum- 

 boldt Co., Tracy 2824 ; Trinity River Valley at Willow Creek, Tracy 8327. 



Eefs. — Trichostema oblongdm Benth., Lab. Gen. et Sp. 659 (1835), type loc. Ft. Vancouver, 

 Columbia River, Douglas; Jepson, Fl. W. Mid. Cal. 454 (1901), ed. 2, 354 (1911), Man. 862 (1925). 



3. T. simulatum Jepson. Stem erect, branched or simple, 7 to 11 inches high, 

 the leaves rather remote ; herbage glandular-villous ; leaf -blades narrowly to broadly 

 lanceolate, 1 to 2 inches long, on petioles 2 to 7 lines long ; cymes on peduncles 2 to 

 6 lines long ; calyx-lobes broad, triangular-acute, about ecjualing the tube ; corolla 

 purplish, 2 lines long; nutlets strongly rugose, puberulent throughout, 11/4 lines 

 long. 



Montane slopes, 2300 to 4400 feet : Sierra Nevada from Plumas Co. to Modoc 

 Co.; west to Siskiyou Co. July- Aug. 



Locs. — Little Grizzly Creek (near mouth), below Genessee, Plumas Co., Heller 4" Kennedy 

 8839; SusanvUle (4 mi. V7.), Hoover 4603; Porestdale, sw. Modoc Co., M. S. Baker; e. Siskiyou 

 Mts., Canby. 



Ref. — Trichostema simulatum Jepson, Man. 862 (1925), type loc. Klamathon, Siskiyou Co., 

 Copeland 3534. 



4. T. laxum Gray. Vinegar Weed. Stem simple or openly branched, 8 to 16 

 inches high, sparsely leafy; herbage dark green, minutely pubescent; leaf -blades 

 lanceolate or oblong-lanceolate, acuminate, pinnately veined, 1 to 2 inches long, on 

 slender petioles; cymes peduncled, rather loose, the flowers in 2 rows on the 

 branches; corolla purple or deep blue, thinly hirsute, 4 to 6 lines long, the middle 

 lobe of lower lip with upturned sides or undulate margins ; nutlets ridged or tuber- 

 culate on back, 1 line long, minutely hispidulous. 



Gravelly sands of stream bottoms or in low fields, 200 to 2500 feet, North Coast 

 Ranges from Humboldt Co. to Sonoma Co. Also in southern Oregon. June-Sept. 



Locs. — S. Ore.: Umpqua Valley, ace. M. E. Peel: North Coast Ranges: South Fork (near 

 mouth) of Trinity River, Tracy 7815; Hydesville, Humboldt Co., Tracy 958; DeVoy Flat, South 

 Fork Eel River (s. of Garberville), Jepson 9465; Navarro River, Mendocino Co., Peirson 10,248; 

 Mud Flat, Newville-Govelo road, w. Glenn Co., Heller 11,526; Gravelly Valley, Eel River, n. Lake 

 Co., Jepson 14,877 ; Van Ness ranch, near Mt. St. Helena, Alice King ; Limekiln Creek, Pope Val- 

 ley, Napa Co., Jepson 19,024; Devils Gate, Putah Creek, sw. Yolo Co., Jepson 14,878. 



Var. rubrisepalum (Elmer) Jepson. Leaves subsessile or tlie lower petioled ; pubescence 

 long-pilose; cymes more densely flowered; calyx-lobes becoming red; corolla 3 to 3% lines long; 

 nutlets % line long. — Stream-beds and hUlside hollows: San Benito Co.; Tuolumne Co. and Mari- 

 posa Co. foothills (Chinese Camp, Hoover 2716; Coulterville, Hoover 3824). Except in size of 

 corolla and nutlets, it closely matches some specimens of typical T. laxum. 



Refs.' — Trichostema laxum Gray, Proc. Am. Acad. 7:387 (1868), type loc. "Little Geysers, 

 Napa Co." (really Geyser Caiion, ne. Sonoma Co.), Brewer; Jepson, PI. W. Mid. Cal. 453 (1901), 

 ed. 2, 354 (1911), Man. 862 (1925). Var. rubrisepalum Jepson, Man. 862 (1925). T. rubrisepa- 

 lum Elmer, Bot. Gaz. 41 :310 (1906), type loc. Hernandez, San Benito Co., Lathrop. 



5. T. lanceolatum Benth. Turpentine Weed. Camphor Weed. (Fig. 422.) 

 Stem simple or branching from near the base, very leafy, 6 to 16 inches high ; herb- 

 age pale green, cinereous or villous-pubescent, minutely but abundantly glandular ; 

 leaf-blades lanceolate, acuminate, with 3 to 5 strong almost parallel nerves or ribs, 

 closely ranked on stem, often plicate and falcate, % to 1% inches long, sessile, or 

 the lowest subsessile ; cymes short-peduncled or nearly sessile, often secundly dis- 

 posed; calyx villous; corolla light blue, 5 to 6 lines long, somewhat pubescent, its 

 tube towards apex abruptly and strongly recurved like a hook; upper lip of corolla 

 longer than the lower ; nutlets papillate on back, white-setulose, 1 to ly^ Hues long. 



Dry plains and open hills, 10 to 3500 feet : common throughout cismontane Cali- 

 fornia except in the immediate vicinity of the coast northward ; also in the western 

 Mohave Desert. North to Washington. Aug.-Oet. 



