348 LABIATJE. Trichostema. 



decurved, appear as if resapinate, and have the two short teeth of the calyx 



uppermost: cismontane, low and paniculately branched annuals. Strepto- 



podium, Benth. 



T. dichotomum, L. Viscid with rather minute pubescence : leaves oblong or lanceo- 

 late-oblong, obtuse, short-petioled : corolla blue or pink, sometimes white: stamens half 

 inch long. Spec. ii. 598; Bart. Fl. Am. Sept. iii. 03. T. pilosum, Roth. Sandy fields, 

 E. Massachusetts to Kentucky, Texas, and Florida. 



T. lineare, Nutt. Puberulent : leaves linear, sometimes nearly glabrous : stems more 

 slender: corolla rather larger: otherwise similar. T. dichotomum, Roth. T. brachiatum, 

 Lam., not L. T. linariie folium, Bertoloni, Misc. xiii. t. 2. Connecticut to Alabama and 

 Louisiana, near the coast, in sandy ground. 



2. Calyx campantilate, regular, almost equally 5-cleft (as in Isanthus) : far 



western species. Ort/topoditim, Benth. 



* Tube of corolla not exceeding the calyx. 



-l Peduncles (in the manner of the preceding) loosely 1-5-flowered and much longer than the 

 leaves. 



T. ArizonicuiB, Gray. Puberulent, a foot or less high from a ligneous perennial root : 

 leaves ovate or oval, half inch long, short-petioled : pedicels as long as the calyx : bracts 

 minute : calyx-lobes ovate or oblong, sometimes irregularly united : lobes of the blue or 

 whitish corolla 3 to 5 lines long, oblong-spatulate, very much longer than the tube, much 

 shorter than the filaments. Proc. Am. Acad. viii. 371. T. dichotomum, Torr. Bot. Mcx. 

 Bound. 134, not L. S. Arizona, Writ/lit, Rothrock. 



H. 1 Peduncles and pedicels short; the inflorescence shorter than the leaves, which are similar to 

 the summit ol' the stein, and are narrowed at base into short petioles: corolla small and inconspic- 

 uous: branching annuals. 



T. micranthum. A span high, cinereous-pubescent : leaves lanceolate, not costate-veiny : 

 peduncles about the length of the 3-7-flowered cymule : calyx-lobes little longer than the 

 tube, nearly equalling the (only line long) corolla: stamens moderately exserted. San 

 Bernardino Co., California, in Bear Valley, Parry &- Lrmmoii. 



T. oblongum, Benth. A span to a foot high, soft-villous : leaves oblong or oval with 

 narrowed base, membranaceous, costate-veined : glomerate cymules many-flowered, sub- 

 sessile, villous : calyx-lobes narrow, much longer than the tube, nearly equalling the (3 line) 

 corolla: filaments 4 or 5 lines long. Lab. 059; Gray, Bot. Calif, i. GOO. Oregon and 

 California to Mariposa Co. 



* * Tube of the corolla slender and exserted, longer than the limb : nutlets sometimes tuberculate. 



-1 Annuals, a span to two feet high, leafy to the summit: leaves nervose-costatc : cymes several- 



manv-flouvved, when fully developed the pedicels becoming secund-racemose in age: calyx-lobes 



ovate or triangular-lanceolate: tube of blue corolla about 3 and limb 2 lines long: stamens half 



an inch longer. 



T. la^um, Gray. Diffusely branched, minutely soft-pubescent, rather sparsely leafy : 

 leaves lanceolate and oblong-lanceolate, acuminate-obtusish (2 or 3 inches long), rather 

 slender-petiolcd : cymes pedunculate, loose. Proc. Am. Acad. vii. 387, & Bot. Calif. 1. c. 

 California, from Sonoma Co. northward. 



T. lanceolatum, Benth. 1. c. More strict and simple, with ascending branches from the 

 base: leaves crowded, sessile, lanceolate or the upper almost ovate-lanceolate, gradually 

 tapering from near the broad base to a very acute tip, strongly 3-5-nervose (an inch or 

 more long) : cymes subsessile or short-peduucled, dense, mostly undivided: calyx villous: 

 corolla somewhat pubescent. California, throughout the whole western part of the State, 

 and north to Oregon. 



-i -F- Shruhhv, taller: cymes in a naked terminal thyrsus: leaves Rosemary-like. 



T. lanatum, Benth. I.e. Very leafy: leaves thickish, narrowly linear and with revolute 

 margins, 1 -nerved, glabrate and shining above, canescent-tomentulose beneath, sessile, many 

 fascicled in the axils; uppermost reduced to bracts: thyrsus racemiform, interrupted; 

 cymules short-pcdmirled or subsessile ; whole inflorescence with calyx and even corolla 

 clothed with dense violet or purple wool : corolla half inch long and filaments an inch 

 or more longer. Torr. Bot. Mex. Bound. 134, t. 40; Gray, Bot. Calif, i. 007. Rocky 

 places, California, from Santa Barbara southward. 



