NO. 2229. FOSSIL PLANTS FROM BOLIVIA— BERRY. 149 



existing Dalbergia variabilis Vogel of tropical Peru, Guiana, and 

 Brazil. In both outline and venation the present leaflets are distin- 

 guished with difficulty from those of the associated species Cassia 

 membranacea Engelhardt and Sweetia tertiaria Engelhardt. The first 

 are slightly narrower and more elongate, and the last, while similar in 

 size and outline, are slightly broader with straighter, more numerous 

 secondaries. 



DALBERGIA (?) ANTIQUA Engelhardt. 



Plate 17, fig. 9. 

 Dalbergia antiqua Engelhardt, Sitz. Naturw. Gesell. Isis in Dresden, 1894, 

 Abh. 1, p. 8, pi. 1, fig. 23. 



Description. — An oval pod, pointed at both ends, with a coriaceous 

 integument and extended peduncle with a persistent calyx. About 

 2.5 cm. long and 1 cm. wide in the median region. 



The character of this pod is more suggestive of Cassia than Dal- 

 hergia, hence I have questioned Engelhardt's generic reference. It 

 is not represented in the present collections, but was compared by 

 Engelhardt with the existing Dalbergia riparia Bentham of the 

 Amazon Basin. 



Genus DESMODIUM Desveaux. 



DESMODIUM ELLIPTICUM Engelhardt. 



Desmodium elUpticum Engelhardt, Sitz, Naturw. Gesell. Isis in Dresden, 1894, 

 Abh. 1, p. 8, pi. 1, figs. 42-44. 



Description. — Leaflets sessile or short petiolulate, elliptical in out- 

 line, slightly inequilateral. Apex and base about equally rounded. 

 Margins entire. Length, about 9 mm. Maximum width, midway 

 between the apex and the base, about 6 mm. Midrib slender, curved. 

 Petiolule, when present, about 1 mm. long, stout. Secondaries thin, 

 three or four camptodrome pairs diverging from the midrib at wide 

 angles. 



This species is not represented in the present collection. It was 

 compared by Engelhardt with the existing Desmodium barbatum Ben- 

 tham, which is widely distributed from the West Indies and southern 

 Mexico to Brazil. In the existing flora Desmodium is a large genus 

 with between 150 and 200 species of herbaceous and shrubby plants 

 widely distributed in the tropics of both hemispheres and with a few 

 extratropical species in both regions. 



Genus DREPANOCARPUS Meyer. 



DREPANOCARPUS FRANCKEI Engelhardt. 



Plate 17, figs. 10, 11. 

 Drepanocarpus franclcei Engelhardt, Sitz, Naturw. Gesell. Isis in Dresden, 

 1894, Abh. 1, p. 7, pi. 1, figs. 36-38. 



Description. — Leaflets sessile, elliptical in outline, nearly equi- 

 lateral, with a broadly rounded apex and a similarly rounded, some- 



