48 CISTINEA.. 
(Bourgeau, 695, 696, & Schaffner, 31), Cordillera of Oaxaca, 5000 to 6000 feet (Galeotti, 
715), Toluca (Andrieus, 528), without localities (Sallé, Parkinson, &c.). Hb. Kew. 
Like H. canadense, this is an exceedingly polymorphic plant. 
6. Helianthemum obcordatum, Mog. et Sessé, in DC. Prodr. i. p. 284. 
Mexico (Mogino & Sessé). 
Probably the same as H. glomeratum. 
7. Helianthemum patens, Hemsley, Diag. Pl. Nov. pars alt. p. 20. 
Fruticosum nanum diffusum puberulum, ramis gracilibus rectis, foliis parvis appressis omnibus 
alternis ovato-lanceolatis oblongisve, floribus longe pedicellatis, pedicellis gracilibus paten- 
tissimis extraaxillaribus, petalis 5 quorum 2 inequaliter (an semper?) biloba, staminibus 
eirciter 12, filamentis filiformibus, seminibus conoideis punctulatis. 
Frutex ramosus, diffusus, 2—-4-pollicaris, puberulus, ramis gracilibus. Folia omnia alterna, appressa, 
ovato-lanceolata vel oblonga, 2-4 lin. longa, utrinque stellato-pubescentia. Flores flavi, longe 
pedicellati, circiter 8-10 lin. diametro, pedicellis gracillimis, patentissimis, extraaxillaribus, 
4-8 lin. longis; sepala albo-pubescentia; petala 5, quorum 2 (an semper ?), insqualiter 
biloba ; stamina circiter 12, filamentis filiformibus ; ovarium glabrum, multiovulatum. Semina 
conoidea, minute punctulata, embryone convoluto viridi. 
Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 
30). Hb. Kew. 
Order XIIT. VIOLARIEZ. 
Violariee, Benth. et Hook. Gen. Plant. i. p. 114. 
Herbs or shrubs, dispersed over nearly all except frigid countries; the herbaceous 
species are found chiefly in temperate regions, and the shrubby in tropical regions, 
About 250 species, belonging to twenty-two genera. 
Tribe VIOLEZ. 
1. CORYNOSTYLIS. 
Corynostylis, Mart. Nov. Gen. et Sp. Pl. Bras. i. p. 25; Benth. et Hook. Gen. Plant. i. p. 116. 
Calyptrion, Ging. Climbing shrubs. Two or three species, restricted to America. 
1. Corynostylis berterii, Spreng. 
Calyptrion berterii, Ging., DC. Prody. i. p. 289. 
Var. 8. mexicana, loc. cit. et Calques des Dess. Fl. Mex. 38. 
Mexico (Mogino & Sessé). 
Hooker (Bot. Mag. sub t. 5960) gives it as his opinion that the genus consists of one 
variable species; but the flowers of the Mexican plant figured as above have a 
very wide inflated throat, and there is also a very distinct plant in Hb. Kew from 
Angostura, 
