348 LABIAT^E. Trichostema. 



decurved, appear as if resupinate, 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. PL Am. Sept. iii. 93. T. pilosum, Koth. — 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. linariiefolium, Bertoloni, Misc. xiii. t. 2. — Connecticut to Alabama and 

 Louisiana, near the coast, in sandy ground. 



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



western species. — § Orthopodium, Benth. 



# Tube of corolla not exceeding the calyx. 



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

 leaves. 



T. Arizonicum, 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 lineo long, oblong-spatulate, very much longer than the tube, much 

 shorter than the filaments. — Proc. Am. Acad. viii. 371. T. dichotomum, Torr. Beit. Mex. 

 Bound. 134, not L. — S. Arizona, Wriyht, Rothrock. 



-t— -t— Peduncles and pedicels short; the inflorescence shorter than the leaves, which are similar to 

 the summit of the stem, 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 & Lemmon. 

 T. bblongum, 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. 659; Gray, Bot. Calif, i. 606. — Oregon and 

 California to Mariposa Co. 



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

 •4— Annuals, a span- to two feet high, leafy to the summit: leaves nervose-costate : cymes several- 

 many-flowered, 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. laxum, Gray. Diffusely branched, minutely soft-pubescent, rather sparsely leafy : 

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

 slender-petioled : 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-peduneled, dense, mostly undivided: calyx villous : 

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

 and north to Oregon. 



•f— -i— Shrubby, taller: cymes in a naked terminal thyrsus : leaves Rosemary-like. 



T. lanatum, Benth. 1. c. 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-peduncled 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. 607. — Rocky 

 places, California, from Santa Barbara southward. 



