Hedeoma. LABIATE. 363 



calyx liirsuto or liispid, from cylindraceous to at length ovate-tubular, slightly gibbous, in 

 age more or less curved, not obviously bilabiate ; the subulate-setaceous teeth at length all 

 connivent and slightly curved upward ; the lower nearly twice the length of the upper : 

 corolla from o or 4 lines long, and little exserted, to lines and double the length of the 

 calyx. — Lab. 308, &. DC. 1. c. 245; Gray, I.e. H. ciliata, Nutt. Gamb. 183, not Benth.— 

 Common from Texas to Arizona, and north to the plains of Colorado and even Nebraska. 

 (Adjacent .Alex.) 



Var. Reverchoni. Rigid: leaves greener, coriaceous, elliptical (half inch long, 3 

 lines or more broad), or the floral oblong, hirsute-pubescent or at least ciliate, the few 

 veins more jjrominent beneath. — Kocks, Brown ('o., Texas, Rcverchon. 

 H. liyssopifolia, Gray. Nearly glabrous throughout : stems slender, erect and simple 

 from a ligneseent perennial base, 8 to 12 inches high : leaves all sessile and entire, nervose 

 veined (especially beneath), narrowly linear-lanceolate and about half inch long, or the 

 lowest much shorter and oblong or oval : short peduncles linear-bracteate, 1-5-flowered : 

 calyx obscurely pubescent, narrowly cylindrical, not gibbous (the tube 2i lines long), not 

 bilabiate; the subulate-setaceous lower teeth nearly twice tlie length of the similar upper 

 ones, all straightish; corolla much exserted, 7 or 8 lines long, purplish. — Proc. Am. Acad, 

 xi. 9G; Kothrock in Wheeler Rep. ined. t. 17. — Arizona, on Mount Graham, Rolhruck. 



■H- ++ Leaves serrate with salient acute and cal!i)us teetli in which the veins tenninate, all sub- 

 sessile or the lower sliort-jietioied : niany-steninied perennials: cymes few-tloweied: ealy.K nar- 

 row, at length somewhat gibbous or curved, 2 or 3 lines long, minutely hirsute. 



H. dentata, Torr. Hirsute-pubescent: stems erect and slender, a foot high: leaves 

 oblong-lanceolate (4 to (3 lines long), coarsely few-dentate ; veins ascending, rather indis- 

 tinct : calyx-tube slender; limb hardly bilabiate; subulate-setaceous lower teeth erect and 

 moderately longer than the recurved-spreading upper ones : corolla pink, nearly twice the 

 length of the calyx, 4 lines long. — Bot. Me.x. Bound. 130, in part ; Gray, I. c. — S. Arizona, 

 near Santa Cruz, Thurher, Ilolhrock. 



H. plicata, Torr. 1. c. Minutely soft-pubescent, a span or more high, at length diffuse : 

 leaves approximate, rigid, rhombic-ovate or the lower roundish-ovate and the iipi)ermost 

 floral oblong (3 or 4 lines long), numerously and coarselj' callous-serrate, conspicuously 

 lineate with the copious strong and straight mostly simple veins, which are very prominent 

 beneath and extend from the midrib through the acute teeth : calyx of the i)receding, but 

 less slender and more gibbous or curved, also more evidently bilabiate : corolla sliorter, 2 

 or 3 lines long. — Mountains along the Rio Limpio and Rio Grande, S. W. Texas, Wn'ijltt, 

 Bi'i/f:/oiv. (There is a similar, but larger flowered and villous species, II. cosUita, S. Mex., 

 Glueshre(jht, no. 815.) 



§ 2. Stachydeoma, Gray, 1. c. Flower.s sessile or sub.sessile, verticilhistrate 

 ill a teriniiuil interrupted spike, tlie fioral leaves diminished to bracts, except 

 sometimes the lowermost: throat of the pink or purple corolla with a ])air of 

 longitudinal projecting folds under the lower lip: Cidyx hardly at all gibbous, 

 rather short, long-hirsute : stem erect : leaves all sessile or nearly so, glabrous or 

 glabratc, with at least the uppermost hirsute-ciliate. 



H. ciliata, Benth. A span or two high from an annual root : stem retrorsely pid)eru- 

 lent and above mostly Inrsute with some sjireading hairs : leaves oblong, obtuse, entire, 

 veinless (inch or less long) : flowers several in the clusters of the spike: calyx moderately 

 bilabiate ; its 15-nerved tube and the subulate-linear bractlets conspicuously white-hirsute ; 

 throat villous-bearded; teeth more naked, similar and of equal length, slender-subulate 

 ciliolate, connivent after anthcsis : tube of the rose-purple corolla not exserted ; upper lij) 

 2-lobed; throat hairy at the insertion of the short included stamens: sterile filaments 

 wanting. — DC. Prodr. xii. 245; Gray, I.e. 307. — Sandy ground, Texas, BerUindier (ex 

 Benth.), Drummond, E. Jlall. 



H. graveolens, Chapm. Stems numerous, a foot or more high from a perennial base 

 or root, strict, often simple, soft-hirsute or pubescent: leaves round-ovate, siibcordate, 

 obscurely pinnately veined (the larger half inch long) ; lower short-petioled and sparingly 

 dentate; uj)per passing into similar bracts, which are shorter than the usually solitary 

 flowers they subtend : bractlets oblong, foliaccous : tube of the 12-13-nerved and conspic- 



