132 PROCEEDINGS OF THE AMERICAN ACADEMY 



upper leaves : flowers apparently white, a line long : pod elliptical, l^- 

 to 2 lines long, beaked with a short style; stigma small. — N. paliistre, 

 Benth, PI. Hartw. 9, Described from a few small but fruiting speci- 

 mens in Herb. Gray, collected by Ilartweg (n. 39) at Aguas Cali- 

 entes in the Mexican State of the same name. The lower axillary 

 pedicels are an unusual character. 



Sisymbrium multikacemosum. Finely stellate-pubescent through- 

 out, the lax and slender stems procumbent, branching, 2 feet long or 

 more : leaves narrowly lanceolate, attenuate to both ends, not auricled 

 at base, sinuately serrulate or sometimes serrate, 1 to 2 inches long : 

 racemes in most of the axils, on very short leafy peduncles or nearly 

 sessile, 1 to 3 inches long in fruit: flowers very small, white: pods 

 divaricately spreading on pedicels about a line long, pubescent, narrow 

 and subcylindrical, about 3 lines long, beaked by a short slender style : 

 seeds in one row, 8 to 10 in each cell. — At Las Canoas, San Luis 

 Potosi ; October, 1890 (n. 3522). A species of strongly marked habit. 



PoLYGALA SUBALATA. Annual, the several stems erect from an 

 ascending base, branching above, narrowly wing-angled, leafy, gla- 

 brous or slightly puberulent, G inches high or less : leaves mostly ver- 

 ticillate, oblanceolate, very acute, 4 to 6 lines long, scabrous on the 

 margin, the lowermost small, obovate to spalulate and obtusish, the 

 upper becoming linear ; spikes sessile, dense, acuminate, becoming 

 elongated and looser: flowers small, very shortly pedicellate; petals 

 white with a broad green or purplish mid vein : capsule very broadly 

 elliptical, equalling the petals (a line long) : seeds oblong, sparsely cov- 

 ered with a very fine appressed silky pubescence, the linear appendages 

 of the hilum as long as the seed. — In low grounds at Flor de Maria, 

 State of Mexico, September, 1890 (n. 3240). Resembling P. aiha, 

 especially its var. siispecta, from which it is most positively distin- 

 guished by the much less pubescent seed nearly equally broad at both 

 ends. 



Talinum Coaiiuilense. Stems very short and leafy, from a slen- 

 der branching rootstock or rhizome bearing oblonij or ovate tubers : 

 leaves rhombic-obovate, cuneate at base and nearly sessile, inflated-mar- 

 gined, ^- inch long or less : flowers solitary on short pedicels (^- inch 

 long) ; sepals round-ovate, acute, strongly concave, 2 to 2^ lines long; 

 petals round-obovate, 3 lines long : stamens numerous with very slen- 

 der filaments and short anthers: capsule ovate. — On limestone hills 

 at Carneros Pass, Coahuila ; INIay, 1890 (n. SOOG). Much resem- 

 bling T. hrevifoUum and T. breriroit/e, especially the latter, differing 

 iu the tuberous roots and broader leaves and sepals. 



