160 Robinson and Greenman—Mexican Plants. 
lobes ovate-oblong, obtusish, 4 to 5 lines long, 24 lines broad at 
base: corona black.—Collected by C. G. Pringle, on hills above 
Oaxaca, altitude 6,000 feet, 6 August, 1894 (No. 4753). 
Buppiera FLoccosa Kunth. Two forms of this species are 
shown by Mr. Pringle’s 6025 (=6139) and by his 4925 from 
Oaxaca. The former numbers represent the typical form with 
rounded, deflexed interpetiolar appendages, while in the latter 
number these stipular structures are obsolete. No other differ- 
ences have been noted. The unappendaged form has also been 
secured in Guatemala by Donnell-Smith and von Tuerckheim. — 
POM@A BRACTEATA Cay. var. PUBESCENS. woody vine 
loosely twining to 15 feet: branches and petioles pubescent: 
leaves irregularly few-toothed, appressed sericeous-pubescent upon 
both surfaces.—Collected by C. G. Pringle, on barrancas near 
Guadalajara, altitude 4,500 feet, 3 May and 9 July, 1894 (No. 
4734 
Irpoma@a suFFULTA Don. (Convolvulus suffulta HBK. Nov. Gen. 
et Spec. iii, 102, t. 211). So far as we can learn this species has 
never been collected since it was first found upon the volcano 
Jorullo by Humboldt and Bonpland. It has now been rediscoy- 
and woody: the stems many, slender, prostrate-ascending. 
Jacquemont1A Surrvut. Suffruticose at base : much branched: 
stems procumbent: branches puberulent, ascending, 2 to 3 feet 
high, not twining: leaves ovate, acutish, mucronate, cordate, 
entire, puberulent upon both sides, the larger 1} to 2 inches long, 
two-thirds as broad; petioles | to 9 lines long: peduncles slender, 
1 to 2} inches long, loosely 2-5-flowered : pedicels 3 to 4 lines 
long: outer sepals rhombic-ovate, acuminate, about 3 lines long; the 
inner narrowly ovate, acuminate: corolla 6 lines long: lobes f 
the stigma thick, subglobose—Collected by L. C. Smith, at 
Cuicatlan, Oaxaca, altitude 1,800 feet, 22 October, 1894 (No. ase} 
by C. G. Pringle, on dry calcareous soil, San Antonio, altitude 
2,500 feet, 1 September, 1894 (No, 4848); and by E. W. Nelson, 
six miles above Dominguillo, Oaxaca, altitude 6,500 feet, 22 Octo- 
ber, 1894 (No. 1600). Foliage and flowers much as in L. violacea 
i ini d lobes of 
ender and 
pubescence ; hairs simple, those of the stem and petioles sprea 
ing, of the leaves appressed : leaves single below, geminate above, 
ovate, acuminate, aa 2 to 
flows neh in diameter, blue, axillary in pairs; pedicels a0 
inch or more in length: calyx urceolate with 5 or 10 small obtuse 
dark-colored prominences below the thin shallowly and bluntly 
