NO. 2229. FOSSIL PLANTS FROM BOLIVIA— BERRY. 127 



very similar to a number of existing forms, among which may be 

 mentioned Capparis domingenesis Strengel and Capparis longifolia 

 of the West Indies, Capparis augustfolia Humboldt, Bonpland, and 

 Kunth of Central America and Capparis jacobinae Moricaud of 

 Brazil. In the existing flora of Bohvia there are several species of 

 Capparis, in the Thornbush or Gran Chaco country of eastern BoUvia, 

 and other species occur in the Andean outliers of Santa Cruz and 

 Cochabamba. 

 Plesiotype.—CsLt. No. 35084 N.S.N.M. 



Order ROSALES. 



Family SAXIFRAGACEAE. 



Genus ESCALLONIA Linnaeus. 



ESCALLONIA WENDTH Britton. 



Plate 15, fig. 11. 



Escallonia wendtii Britton, Trans. Amer. Inst. Mining Eng., vol. 21, 1893, p. 254, 

 figs. 14, 15. 



Description. — Leaves of medium size, ovate or elliptical in outline 

 with a bluntly pointed apex and a broadly cuneate base. Margins 

 crenulate above, the teeth becoming gradually more widely spaced 

 below the middle and passing by an insensible transition into small 

 widely spaced serrate teeth, which eventually become obsolete, the 

 lower one- third of the margins being entire. Length 4 to 4.5 cm. 

 Maximum width, midway between the apex and the base, 2.25 to 

 2.5 cm. Petiole missing or absent. Midrib stout and prominent, 

 slightly curved. Secondaries thin, about nine pairs diverge from 

 the midrib at angles of about 45°, somewhat unequally spaced, sub- 

 parallel and camptodrome. Tertiaries not made out. 



This species was described by Britton from the two specimens 

 figured by him and is not contained in the collections from Potosi 

 studied by me. 



Escallonia contains about 50 existing species of shrubs or small 

 trees, confined to and widespread in South America, with many 

 Andean species. 



If correctly identified it is one of the few fossil forms found at 

 Potosi that would not be out of place in a dry montane environment, 

 but as other of the numerous existing species are found in somewhat 

 different environments east of the present mountains, its significance 

 is equivocal. 



