Vol. XV, pp. 19-21 February 18, 1902 



PROCEEDINGS 



OF THB 



BIOLOGICAL SOCIETY OF WASHINGTON 



NEW AMERICAN SPECIES OF CHAMAECRISTA.'^ 

 BY CHARLES LOUIS POLLARD. 



Chamaecrista mirabilis. 



Plant fruticose, erect, branching, 4-5 dm. high, quite glabrous, the 

 branches slender and wiry; leaves on the main stem 12-18-foliolate, those 

 on the lateral twigs only 4-12-foliolate; leaflets linear, 4-5 mm. long, finely 

 cuspidate, the midvein only slightly excentric, the surface apparently 

 entirely glabrous; petiolar glands 2, or rarely 1 or 3, situated just below 

 the lowermost pair of leaflets; both glands small, discoid, borne on very 

 slender styles, that of the basal gland being from 5 to 7 mm. in length; 

 stipules linear-acuminate, striate, persistent; flowers not observed; 

 legumes borne on pedicels surpassing the leaves, linear in outline, nearly 

 straight, glabrate, 12-15 seeded, dehiscent with elastic valves at ma- 

 turity. 



Type in herbarium New York Botanical Garden, collected at Rio 

 Piedras, Porto Rico, by Mr. and Mrs. A. A. Heller, February 27, 1899 

 (No. 642). The plant is remarkable for the presence of one and some- 

 times two, supei'numerary glands, situated above the normal petiolar 

 gland found throughout the Chamaecristae verae. It is a member of 

 the nictitans series, of slightly shrubby habit, or lower stature than C. 

 aescMnomene, and with neither the pubescence nor the gland of that 

 species. 



Chamaecrista bellula. 



Plant slender, erect, 3-4 dm. high, the branches ascending; stems and 

 rachises puberulent; leaves 5-10-foliolate, the leaflets linear-elliptical, 



*Published by permission of the Secretary of the Smithsonian Insti- 

 tvition. 



4— Biol. Soc. Wash. Vol. XV, 1903. (19) 



