390 PROCEEDINGS OF THE AMERICAN ACADEMY. 



springing from the forks of the branches ; peduncles but 1-2 lines 

 long: calyx in anthesis 1^ lines long, glandular-villous ; teeth short, 

 ovate, acute : corolla apparently white, with dark spots at the base, 

 2-3 lines long: anthers greenish-blue : fruiting calyx about \ inch in 

 diameter. — First collected by Mr. W. G. Wright near Mazatlan, 

 January, 1889 (no. 1252) ; then by Dr. Edward Palmer, at Alamos, 

 September 16-30, 1890 (no. 709, mentioned by Dr. Rose, Contr. 

 Nat. Herb. i. 108), and finally collected by Mr. Pringle in the bar- 

 ranca of Tepic, 11 October, 1893. This species differs from any 

 known to the authors in its very thin, quite entire, exactly ovate and 

 sharply acuminate leaves, as well as in its small subsessile flowers. 

 The following imperfectly described species may well be related : 

 P. geniculate,, Miers, which, however, is said to have obtusish leaves 

 and peduncles equalling the petioles ; P. glabra, Mart. & Gal., which 

 also has peduncles equalling the petioles ; and P. minutiflora, Moc. & 

 Sesse, with repand acute pruiuous leaves. 



Jacobinia stellata. Stellate - tomentose : stems ligneous, 

 branched, light. colored, not constricted about the nodes: leaves ovate- 

 lanceolate, H-4 inches long, two fifths as broad, narrowed to an obtuse 

 apex, cuneate at the base, paler beneath ; petioles 5-8 lines long : 

 inflorescences short, crowded, pedunculate in the upper axils, glandular- 

 pubescent ; bracts narrowly elliptic, cuneate, foliaceous, 5 lines long ; 

 calyx segments linear-oblanceolate, acutish, l-nerved,8 lines long, a line 

 broad: corolla 1^ inches or more in length, slender, reddish purple; 

 the lower lip spreading, 6 lines long ; the upper erect, a little shorter : 

 fruit glandular-pubescent, a little over a half an inch in length. — 

 Collected under dry cliffs m the barranca of Tequila, 16 October, 

 1893 (no. 4573). Well characterized by its pubescence. 



Carlowrightia hapalocarpa. Rootstock horizontal, much 

 branched : stems erect, or nearly so, 10-15 inches high, tomentulose 

 and slightly hirsute, with a few longer spreading hairs : leaves short- 

 petioltd, ovate, acute, 1-1^ inches long, 9-12 lines broad, hirsute 

 upon the veins and margin, paler beneath : flowers in pairs, forming 

 loose subsimple terminal spikes ; bracts minute : calyx glandular- 

 pubescent ; segments linear-oblong, acutish, 1-1 J lines long: corolla 

 pale purple, nearly £ an inch in leugth : anther cells slightly oblique: 

 fruit tomentulose; seeds flat, black, finely tuberculate. — Collected on 

 limestone hills, Villar, State of San Luis Potosi, 14 September, 

 1893 (no. 5471). 



Lippia appendiculata. Procumbent, much branched, appressed- 

 pubescent, cinereous: stem short, somewhat ligneous, H-2 lines in 



