ROBINSON. — MEXICAN PLANTS. 319 



yellow, 5 lines in diameter ; segments ovate-lanceolate, acutish ; orifice 

 covered with a conspicuous dense white beard : anther cells nearly 

 upright : crown of five short obtuse scales, adnate to the base of the 

 corolla. — In foliage and bearded corolla this species approaches G. 

 barbatus, 11 BK., which, however, has larger flowers and is from the 

 coast. 



Pherotrichis leptogenia. Densely hirsute : stems simple, 

 erect, 1-2 feet in height, from a fusiform root : leaves short-petioled, 

 obtuse ; the lower oval, smaller, subcordate ; the upper ovate to ovate- 

 lanceolate : flowers in successive sessile intra- and super-axillary um- 

 bels ; pedicels 3 lines long : calyx hirsute ; segments lanceolate, acute, 

 1% lines long: corolla 4-6 lines in breadth; its segments widely 

 spreading, oblong-ovate, obtuse, greenish, striped with yellow, very 

 thinly bearded or glabrate : corona equalling but not exceeding the 

 stigma : membranous appendages of the anthers conspicuous : appen- 

 dage of the stigma conical obtuse. — Collected on hills near Patzcuaro, 

 30 July, 1892 (no. 5279), and again on dry slopes near Guadalajara, 

 2o July, 1893 (no. 4466). Possessing the habit of P. Schaffaeri, 

 Gray, and P. Balbisii, Gray, but differing in its somewhat larger, 

 more open and almost glabrous corolla. Mr. Pringle's no. 1148, col- 

 lected in the Mapula Mountains of Chihuahua, 26 October, 1886, is 

 the same, and shows the fruit to be lanceolate in outline, very acute 

 and hirsute, 2|- inches in length. 



Ehretia cordifolia. A large tree with light brown glabrate 

 branches ; branchlets somewhat hirsute ; lenticels conspicuous : leaves 

 thick, of harsh texture, ovate, obtusish or very shortly acuminate, 

 serrate, cordate or subcordate, scabrous above, paler and soft pubescent 

 beneath, 2-3 inches in length, two thirds as broad ; petioles pubescent, 

 £ inch in length : panicles terminal, only 1-H inches in length : sepals 

 ovate-lanceolate, a line long: fruit oblong, 4-celled, 4 lines in length, 

 2£ lines in diameter. — Collected in valley, Zapotlan, 19 May, 1893 

 (no. 4382). Of this species fruiting specimens only are at hand. 

 They possess a strong habital resemblance to E. Mexicana, Wats., but 

 have broader cordate leaves. 



Ipomoea stans, Cav., var. hirsuta. Very hirsute: leaves 

 broad, sessile: sepals short, suborbicular. Collected by Dr. Edward 

 Palmer on the Rio Blanco, Jalisco, August, 1886 (no. 324), and by 

 Mr. Pringle on plains near Guadalajara, 30 August, 1893 (no. 4488). 

 The typical form is merely puberulent, and has longer relatively nar- 

 rower sepals. 



Ipomosa perlonga. Stem a little puberulent or glabrous, slightly 



