OP ARTS AND SCIENCES. 105 



shorter and with a violet tip : pod oblong, smooth, 4 lines in length. 

 — On drier ridges under pines, Nevado de Toluca, 12,000 ft., Sep- 

 tember, 1892 (n. 4238). Near A, Mandoni, Riisby iued., of Bolivia, 

 represented by Bang's no. 1022, but differing in its more slender stems, 

 smaller leaflets, and broader bracts. 



Stylosanthes dissitiflora. Much branched from near the 

 base, 8-10 inches high, copiously beset with soft brownish setose 

 hairs : sheath of the stipules \\ lines long, equalling the subulate seti- 

 form appendages : free portion of the petiole 1-1 i lines long : leaflets 

 linear lanceolate, sharply acuminate, somewhat narrowed but obtusish 

 at the base, glabrous on both surfaces, strongly ciliate, 4-6 lines long, 

 |-1^ lines broad, veins prominent beneath: flowers scattered, pinkish : 

 stipe of the calyx 1 § lines long, divisions of the limb obtuse, ciliate : 

 standard obovate-orbicular, retuse, 3 lines in length : ala? obovate with 

 very slender auricles : fruit not seen. — Dry rocky soil, Rio Blanco 

 near Guadalajara, September, 1891 (n. 5172). 



Cotyledon subrigida. Glabrous, 1^2 feet io height: leaves 

 radical, sessile, ovate, acute, 3-4 inches long, two thirds as broad : stem 

 and branches covered with a light bluish bloom : bracts of the stem 

 5-10 lines long, of the branches minute : inflorescence about a foot, 

 long, with about 8 spreading somewhat rigid racemosely 5-7-flowered 

 branches : flowers large (f inch), approximate, borne on the upper 

 side of the branches : pedicels a line or two in length : sepals lanceo- 

 late-acuminate, half the length of the petals ; the latter lanceolate-acu- 

 minate, acutely keeled, somewhat gibbous at the base, red, internally 

 tinged with yellow: stamens nearly equalling the corolla. — Ledges 

 and cliffs, Tultenango Canon, State of Mexico, October, 1892 (n. 

 4326). Near C gibbijlora, Moq. «& Sess., but with the branches of 

 the inflorescence shorter and more rigid, leaves shorter, etc. 



Sedum Pringlet, "Wats. var. ? minus. An inch or less in heiHit : 

 inflorescence more dense : antheriferous stamens only 5. — Bare earth, 

 summit of the Nevado de Toluca, September, 1892 (n. 4240). Per- 

 haps distinct : also near Peyritsch's S. napiferum, but differing in 

 stamens, etc. 



CuPHEA (Diploptychia) avigera. a slender annual a foot 

 and a half high : stem slightly scabrous, the middle of each internode 

 glutinous : leaves opposite, membranaceous, nearly sessile, narrowly 

 lanceolate, 1^-2^^ inches long, tapering almost from the subcordate 

 base to the acuminate tip, roughened by minute hairs and somewhat 

 adhesive : racemes axillary, alternate, loosely 3-5-flowered : bracts 

 linear, much longer than the pedicels: bractlets none : calyx glandular- 



