328 ACANTHACEiE. Carlowrightia. 



lobes of the purple and almost rotate corolla oblong, 2| lines long, twice the length of the 

 tube : filaments hirsute-puberulent : anthers sagittate, the cells at base very obtuse or 

 retuse : stipe as long as the body of the capsule. — Shaueria linearifolin, Torr. Bot. Mex. 

 Bound. 123: referred by Bentli. & Hook. Gen. ii. 1114, to Dianthera, but it cannot properly 

 be included in that genus. — Western Texas ; on hills between the Limpio Pass and the Kio 

 Grande, Wriijht. Burro Mountains and Great Canon of the Rio Grande, Blgclow, Parry, 

 C. Arizonica, Gray, 1. c. Apparently low, diffuse : leaves oblong or lanceolate, 2 or 3 

 lines long: flowers sparsely spicate on filiform branclilets : bracts subulate, shorter than 

 tlie calyx : bractlets minute or none : calyx deeply 5-cleft ; the lobes subulate : lobes of the 

 briglit purple corolla 4 lines long, thrice tlie length of the narrow tube, narrowly oblong, 

 or tlie posterior broader above and with a yellow spot on the face, contracted below : fila- 

 ments glabrous : antliers oblong : stipe shorter than the body of the capsule. — Arizona, on 

 rocks near Camp Grant, Palmer, 1867. 



8. ANISACANTHUS, Nees. {yiviaog, unequal, and eixavdog, the Acan- 

 thus.) — Suffruticose or shrubby plants (of Mexico and its borders) ; with mostly 

 lanceolate and entire petioled leaves, and usually loosely spicate or scattered red 

 (an inch or more long) flowers : branches apt to be pubescent in alternate lines. — 

 Benth. & Hook. Gen. ii. 1117. 



A. pumilus, Nees. Low shrub, nearly glabrous : leaves lanceolate or linear-lanceolate 



(about 18 lines lung) ; the larger short-petioled : calyx pubescent or tomentulose, 5-parted ; 

 tlie subulate or linear lobes about equalling the stipe of the capsule, wiiich is not longer 

 than tiie body : corolla red or reddisli. — DC. Prodr. xi. 445. Drejera puberula, Torr. Bot. 

 Mex. Bound. 121. — S. Arizona, Wright, Wheeler. Probably not distinct from A. viryularis, 

 Nees, the Jiisticia coccinea, Cav. and J. virgularis, Salisb. (Mex.) 

 A. Thurberi. Slirubby, 2 to 4 feet high : young parts minutely hirsute : leaves oblong or 

 lanceolate (an incli or less long), tiiickish, subsessile : flowers more pedicellate, in short 

 leafy clusters at tlie axils : calyx-lobes long-attenuate, equalling the pointed capsule, twice 

 ,the length of its stipe : corolla red, more funnelform ; its lobes little sliorter tlian tiie tube. 

 — Drejera Thurberi, Torr. Bot. Mex. Bound. 124. — S. New Mexico and Arizona, Thurher, 

 Capt. Smith, Palmer. 

 A. W^rightii. Suffruticose, 2 to 4 feet high, puberulent or the foliage glabrous, panicu- 

 lately branclied: leaves oblong- or ovate-lanceolate, acute or acuminate (an incli or two 

 long) : sjiikes loosely paniculate, naked : lobes of tlie deeply 5-cleft calyx oblong-lanceo- 

 late, obtuse, very much (commonly thrice) shorter tlian the stipe of the pointed capsule 

 (stipe 3 to 5 and capsule 3 or 4 lines long) : corolla purplish-red, inch and a half long, with 

 lobes considerably shorter tlian tube. — Drejera Wrightii, Torr. I.e. — S. and W. Texas, 

 between the Guadaloupe and the Rio Grande, Wright, &c. 



A. Greggii, Drejera Greggii, Torr. 1. c, of northern part of Mexico, has leaves as the 

 last species, but more pubescent and veiny, longer and slender corolla, with linear lobes 

 longer tlian the tube, tomentose calyx 5-cleft only to the aiiddle, and the single capsule 

 seen is obovate and obtuse or retuse, on a stipe of thrice its length and double the length 

 of the calyx. 



9. SIPH0N0G-L6SSA, Oersted. {lUfm', tube, and ylwaaa, tongue.) — 

 Herbaceous or barely suffrutescent, chiefly Mexican. 



S. Pilosella, Torr. Low, branching from a suffrutescent base, hirsute with scattered 

 spreading hairs: leaves ovate or oval, subsessile (5 to 15 lines long): flowers mostly soli- 

 tary in the axils : sepals 5, subulate : corolla pale blue or purple, with tube 8 or 9 and limb 

 3 or 4 lines long: lower anther-cell conspicuously mucronate-calcarate at base; upper less 

 so at apex : seeds cordate-orbicular, rugulose. — Bot. Mex. Bound. 134. Adhatodu diptera- 

 cantha, Nees in DC. 1. c. 39G. Monecltma Pilosella, Nees, 1. c. 412. — Dry ground, Texas and 

 S. New Mexico. (Adjacent Mex.) 



S. longiflora. Glabrous, or the slender stems cinereous-puberulent, barely a foot liigli : 

 leaves lanceolate, glabrous, short-petioled, an inch or two long: flowers clustered in ujjper 



