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 lineari/olia, Torr. Bot. Mex. 

 Bound. 123 : referred by Benth. & 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 Rio 

 Grande, Wright. Burro Mountains and Great Canon of the Rio Grande, Digeloio, Parry. 

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

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

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

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

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

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

 rocks near Camp Grant, Palmer, 1867. 



8. ANISACANTHUS, Nees. {^viaog, unequal, and anavdog, 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. 1 1 17. 



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

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

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

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

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

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

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

 lanceolate (an inch or less long), thickish, subsessile : flowers more pedicellate, in short 

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

 the length of its stipe: corolla red, more funnelform; its lobes little shorter tlian tlie'tube. 

 — Drejera Thurheri, Torr. Bot. Mex. Bound. 124. — S. New Mexico and Arizona, Thurber, 

 Capt. Smith, Palmer. 

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

 I'ately branched: leaves oblong- or ovate-lanceolate, acute or acuminate (an inch or two 

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

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

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

 lobes considerably shorter than tube. — Z>re/era Wrightii, Torr. 1. c — 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 than the tube, toraentose calyx 5-cleft only to the middle, 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. SIPH0N0GL6SSA, Oersted. (2't'g)cor, tube, and yXwaaa, 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. Adhuloda dipiera- 

 cantha, Nees in DC. 1. c. 396. Monechma 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 high : 

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



