OF ARTS AND SCIENCES. 447 



by Palmer, 1879 (n. 2139), in the Cheuati and Vieja Mountains by 

 Dr. V. Havard, 1881 (n. 8 and 130), and at El Paso by M. E. Jones, 

 1884 (n. 4193); on rocky hills near Chihuahua, C. G. Pringle, 1885 

 (n. 164, 363). Referred doubtfully, in Proc. Amer. Acad. 17. 331, 

 to A. Texense, as a variety, from which species it differs in its stouter 

 habit, denser inflorescence, the larger calyx not reflexed in fruit, the 

 carpels more coarsely pubescent, etc. 



Abutilon Dugesii. Glutinous-pubescent throughout, sufFrutescent: 

 leaves ovate-lanceolate, acuminate, cordate at base, rather acutely 

 dentate, densely stellate-tomentose, | to 2 inches long, the petioles 

 nearly as long ; stipules filiform : flowers axillary, solitary, on stout 

 pedicels (4 to 12 lines long) jointed near the summit: calyx deeply 

 cleft, the broad subacuminate lobes equalling the carpels ; petals 

 orange, 3 lines long : carpels 9, lanceolate, acuminate, finely stellate- 

 pubescent, 6 lines long, 2-3-seeded. — Collected near Guanajuato by 

 Berlandier in 1827 (n. 1330), and by Prof. A. Duges, 1883. 



Urvillea dissecta. Stems herbaceous from a branching woody 

 caudex or rootstock, 1 to 2 feet high, finely pubescent or glabrate, 

 8-sulcate, the alternate furrows deeper: leaves twice quinate, the 

 larger about 3 inches long, the secondary petioles margined, the seg- 

 ments (3 to G lines long) pinnatifid or pinnately divided into 3 to 5 

 linear-oblong lobes, sparingly pilose and ciliate with short spreading 

 hairs : peduncles equalling the leaves ; flowers in short contracted 

 panicles, ochroleucous, the calyx puberulent : fruit glabrous, inflated, 

 thin-membranous, quadrangular in vertical outline, nearly twice broader 

 than high (8 lines long), apiculate with the short style, abruptly short- 

 cuneate at base, the large cells extending nearly to the base, com- 

 pressed at the side and narrowly winged below ; dissepiment above 

 the attachment of the seed ovate in outline and broadly perforated : 

 seed subglobose, 2 lines in diameter, attached near the base to the top 

 of the thickened axis. — On cool slopes under cliflfs near Chihuahua ; 

 C. G. Pringle, May and September, 1885, in flower and fruit (n. 8, 

 361|). This was distributed under the name of Serjania (?) dissecta, 

 on account of the apparent resemblance of the fruit to that of Serjania 

 cystocarpa, Radl. (S. (?) inflata, Watson), mature specimens of which 

 have not been collected. The. mature fruit of the present species is 

 essentially different, however, from that of Serjania, and does not 

 differ greatly from that of Urvillea, to which genus therefoie it is here 

 referred. 



Psoralea Reverchoni. Tall and branching (2 feet high), canes- 

 cent with short appressed pubescence : leaves digitately 2-5-foliolate ; 



