I 



STANDLEY TEEES AND SHRUBS OF MEXICO. 1195 



1. Breweria sulphurea T. S. Brandeg. Univ. Calif. Publ. Bot. 4: 3S4. 1913. 

 Type from Baiios del Carrizal, Veracruz. 



Stems suffrutescent, scandent ; leaves elliptic-oblong to oval-ovate, 4 to 7.5 

 cm. long, rounded and mucronulate at apex, rounded at base, fulvous-tomentose 

 beneath, petiolate ; flowers mostly long-pedicellate ; sepals 1 to 1.5 cm. long ; 

 corolla 1.5 cm. long, hirsute. 



2. Breweria multicaulis T. S. Brandeg. Univ. Calif. Publ. Bot. 4: 185. 1911. 

 Type from Sierra del Rey, Coahuila. 



Stems stout, suffrutescent, densely white-tomentose ; leaves sessile, 1 to 2.5 

 cm. long, acute or attenuate, acute at base, densely pubescent ; flowers sub- 

 sessile ; sepals 10 to 14 mm. long ; corolla 3.5 cm. long, blue, hirsute. 



3. Breweria ovalifolia (Torr.) A. Gray, Syn. Fl. 2^: 217. 1878. 

 Evolvulus ovaUfoUus Torr. U. S. & Mex. Bound. Bot. 150. 1859. 

 Type collected along the Rio Grande below San Carlos, Coahuila. 



Plant probably herbaceous, sericeous-canesceut ; leaves about 2.5 cm. long, 

 subcordate at base ; peduncles very short ; capsule globose, 12 mm. in diameter. 



2. PORANA Burm. Fl. Ind. 51. 1768. 

 The other species are natives of the Old World. 



1. Porana velutina (Mart. & Gal.) Hallier, Bot. Jahrb. Eugler 16: 538. 1893. 



Dufourea velutina Mart. & Gal. Bull. Acad. Brux. 122: 259. 1845. 



Breweria mexicana Hemsl. Biol. Centr. Amer. Bot. 2: 400. 1882. 



Morelos, Puebla, and Oaxaca ; type collected near La Venta de Aragon, be- 

 tween Tehuacan and Oaxaca, altitude 900 meters. 



Scandent shrub ; leaves petiolate, oblong-ovate to broadly ovate, 4 to 9 cm. 

 long, acuminate, rounded or obtuse at base, entire, sericeous, especially be- 

 neath, or in age glabrate; flowers in axillary, few or many-flowered cymes, 

 slender-pedicellate; sepals very unequal, the 3 outer ones larger, oval, be- 

 coming as much as 18 mm. long, rounded at apex, glabrate; corolla funnel- 

 form, about 1.5 cm. long, sericeous outside ; stamens included ; ovary 2-celled, 

 4-ovulate; style flliform, unequally bifid, the stigmas capitate. 



3. JACQUEMONTIA Choisy, Mem. Soc. Phys. Hist. Nat. GenCve 6: 476. 1833. 



Stems usually scandent, herbaceous or fruticose; leaves entire, usually cor- 

 date ; flowers blue or white, cymose or capitate, axillary ; sepals subequal or 

 the outer ones larger; corolla broadly or narrowly carapanulate, the limb pli- 

 cate, 5-angulate; ovary 2-celled, 4-ovulate; style filiform, the stigmas 2, ovate 

 or oblong; seeds usually glabrate. 



All the Mexican species are listed here, but some of them are wholly herba- 

 ceous. 



Flowers in headlike clusters, the bracts foliaceous. 



Bracts, except the outermost, linear 1. J. tam^nifolia. 



Bracts all broad. 



Corolla glabrous outside ; pubescence of the leaves spreading. 



2. J. pycnocepliala. 



Corolla hirsute; pubescence of the leaves appressed 3. J. perryana. 



Flowers in loose or dense cymes, the bracts small. 

 Sepals rounded or obtuse at apex, not apiculate. 



Sepals glabrous 4. J. nodiflora. 



Sepals pubescent. 



Corolla about 12 mm. lon^ 5. J. simulata. 



Corolla about 40 mm. long 6. J. nelsoni. 



