Poly gala. POLYGALACE^E. 451 



Var. angustifolia, Torr. & Gray. Leaves very narrow, linear, acutish, glabrous 

 or nearly so : tiuwers smaller : capsule slightly narrower and mostly equalling the wings. — 

 Fl. i. 671 ; P. Jiabellata, Shuttl. distr. pi. Rugel, no. 37 ; Gray, 1. c. ; Chodat, 1. c. 53, t. 15, 

 f. 25, immature seed (the ripe ones not differing essentially from those of the type). — Centr. 

 and S. Florida, Leaveniuorth, Rugel, Cooper, Palmer, Garber, Nash (plants of the last three 

 in floral char, approaching the type). 



§ 3. CHAM./EBUXUS, DC. Hei'bs or undershrubs, sometimes spiny : leaves 



alternate : calyx mostly deciduous : keel beaked or crested : disk more or less 



developed. — Prodr. i. 331, as modified by Chodat, 1. c. 93, 



* Keel beaked with a cucullate or cornute process : flowers (homomorphous or heteromor- 

 phous), mostly in leafle.ss racemes : Western and Southwestern. 



■^r— Unarmed. 



++ Soft cauescent-tomentulose : leaves obtuse or obtusish : flowers rather large in short 

 racemes : species of the Southwest. 



P. Rlisbyi, Greene. Low undershrub : stems (3 to 5 inches long) from a much branched 

 ligneous rootstock : leaves elliptic or oblanceolate, cuneate at the base, 5 to 8 lines long, 

 nearly half as broad : flowers nearly half inch in length, sleuder-pedicelled : wings carneous, 

 elliptical, "4 or 5 lines long, half as broad, somewhat surpassed by the rose-purple petals: 

 keel with oblong bluntish beak. — Bull. Torr. Club, x. 125; Wheelock, I.e. 145; Chodat, 

 1. c. 104, t. 18, f. 1-3. — Arizona, Palmer, Rushy, Jones, Lemmon ; first coll. by Palmer ; fl. 

 early summer. 



•w- ++ Pubescent or puberulent : leaves of firm texture, at least the upper acute or mucro- 

 nate : flowers smaller, develo]5ing successively upon and soon deciduous from a slender 

 bracteolate and mostly geniculate axis : upper sepal often persisting uuder the young 

 puberulent capsule : southwestern very closely related species with numerous stems from 

 a woody root or branched liguescent stock. 



= Upper leaves lanceolate. 



P. Lindheimeri, Gray. Pubescent or even tomentose-pubescent with spreading hairs : 

 leaves reticulated, mucronate, not glaucescent ; the lower oval, 6 to 9 lines long, a third to 

 more tlian half as broad ; racemes (inch or more in length) few-flowered ; rhacliis with 4 to 

 6 soon strongly geniculate joints : flowers purple, 2 to 2^ lines long : outer sepals pubescent 

 and ciliated, narrow and acutish : wings cuneate at the base : capsule elliptic-oblong, covered 

 with spreading pubescence. — PI. Lindh. pt. 2, 150, PI. Wright, i. 39, & ii. 30; Wheelock, 

 1. c. 142, at least in great part, but excl. var. ; Chodat, 1. c. 107, t. 18, f. 10-12. — Rocky 

 ground, Texas and New Mexico; the earliest collectors, Lindhelmer, Wright. 



P. Texensis, Robinson, n. sp. Habit and foliage of the last preceding species : covered 

 throughout with a very fine incurved or appressed puberulence : upper leaves more narrowly 

 lanceolate: racemes much longer; rliachises with 12 to 18 joints: outer sepals shorter, 

 elliptic-oblong, obtuse, finely incurved-puberulent upon the outer surface : wings scarcely 

 narrowed at the base : appendage of the keel rather narrowly oldong : fruit unknown. — 

 Rocky places, Texas, on the Upper Guadalupe River, Linclheimer, no. 337, July, 1845. 

 Evidently growing with or near the type of the last ; also near Comanche, Revere/ton, no. 708. 



P. Arizonse, Chodat. Similar in habit to the last two preceding species : glaucescent and 

 covered (under lens) with very short incurved or appressed hairs: leaves lanceolate to lance- 

 linear, cariuate, not strongly reticulated : inflorescences rather short ; rhacbises 4-8-jointed : 

 outer sepals ovate-oblong, relatively short and broad, obtuse, minutely jniberulent : appen- 

 dage of the keel very short and blunt : puberulent capsule shorter and broader than in 

 P. Linrlheimeri. — Monogr. Polyg. 108, t. 18, f. 13-15. P. Lindheimeri, var. parvifolia, 

 Wheelock, 1. c. 143. — Arizona, on limestone ledges in foot-hills of the Santa Rita Moun- 

 tains, Pringle, 1884 ; also secured (ace. to Chodat) on the Mex. Bound. Surv. no. 190, and in 

 New Mexico by Wright, no. 946. 



= = Upper leaves linear. 



P. Tweedyi, Bhitton. Glaucous and (under lens) incurvcd-puberuleut : all leaves except 

 the lowest oblong-linear to linear, acute, pale, erect, 4 to 10 lines long, a line or less iji 



