OP ARTS AND SCIENCES. 181 



1886 (n. 251). Dr. Palmer's specimen was referred by Dr. Gray 

 (P. A. A., XXII. 436) to D. stapelicefiorus, since it accorded with 

 Reichenbach's exceedingly defective description. The additional 

 notes and excellent plate of that species in Kegel's Gartenflora, 

 Vol. VI., however, show clearly that it is altogether different, with 

 larger, somewhat undulate leaves, much shallower corolla tube, and 

 broader differently colored limb. Mr. Pringle's specimen and one 

 of Dr. Palmers show no tendency toward a climbing habit; but a 

 detached branch with Dr. Palmer's no. 251 has longer, flexuous 

 internodes, suggestive of such a character. The flowers on this 

 branch are larger, and the common peduncles longer. 



Gonolobus suberiferus. Stem covered with a thick rough 

 light yellowish corky bark: branches, petioles, and peduncles cov- 

 ered with a spreading pubescence: leaves ovate, acuminate, deeply 

 cordate, with a narrow, often closed sinus, pubescent on both sur- 

 faces and ciliate, lj— 2 inches long, 1 inch broad: petioles an inch 

 long: peduncles about half as long, each bearing a single pedicel 

 an inch in length : catyx segments ovate-oblong, acute, pubescent 

 and finely granular on the outer surface, ciliate, nearly smooth 

 within, corolla 1^ inches in diameter; segments ovate, obtuse, 

 yellowish green, very minutely granular, otherwise smooth, exceed- 

 ing the calyx by half, not conspicuously marked or veined : top of 

 column white : crown dark brown : follicles slender, smooth, more 

 than 3 inches in length, the calyx persistent at its base. — San 

 Jose Pass, San Luis Potosi, July, 1890 (n. 3631). 



Phacelia namatostyla. A small, slightly fleshy annual: 

 stems numerous, short, 2-3 inches in length, prostrate, branching, 

 pubescent: leaves bipinnatifid, 8-12 lines in length; pinnae about 

 seven pairs and terminal one, oblong, obtusely lobed, covered above 

 with a fine gray pubescence, smoothish below, except the midrib; 

 margins strongly revolute : racemes numerous, dense, not exceeding 

 the leaves ; bracts minute or obsolete ; flowers very small : calyx 

 lobes oblong-spatulate, corolla white, a line in length, campanulate 

 with slightly spreading limb of five rounded lobes : stamens inserted 

 upon the lower part of the tube, scarcely equalling the corolla; fila- 

 ments smooth: style divided nearly to the base; summit of the 

 ovary pubescent; ovules two on each placenta, pendent; capsule 

 globose, shallowly sulcate in the middle of each of the two valves ; 

 seeds dark brown, one line in length, conspicuously pitted. — Car- 

 neros Pass, Coahuila, May, 1890 (n. 3493). This species is anoma- 

 lous in its style, which is divided practically to the base, as in 



