ART. 24 FOSSIL PLANTS FROM COLOMBIA — BERRY 5 



species of Coussapoa have been described in recent years from trop- 

 ical America. These comprise forms from the Miocene of southern 

 Mexico,^ Venezuela/ Trinidad/" Ecuador, and Bolivia." 



The genus contains about 15 existing species of shrubs and trees 

 confined to the rain forest country between southern Mexico and 

 Brazil and the Bolivian Yungas. 



COUSSAPOA GIGANTEA, new species 



Plate 4 



Leaves of large size, broadly ovate in outline, abruptly acute 

 tipped, broadly cuneate or rounded at the base. Margins entire. 

 Texture subcoriaceous. Length at least 25 centimeters. Maximum 

 width, at or below the middle, 19 to 20 centimeters. Midvein ex- 

 traordinarily stout and prominent. Secondaries stout and prominent, 

 seven or eight pairs; they diverge from ^ the midvein at wide angles 

 proximad, becoming more ascending in the upper half of the leaf, 

 curving regularly and camptodrome close to the margins. Tertiaries 

 relatively very thin, closely spaced, parallel, and percurrent. Areola- 

 tion obscure. 



This species is based upon the single incomplete specimen figured. 

 It is preserved in a sandstone and the finer features are consequently 

 obscure. It unquestionably belongs to some member of the family 

 Moraceae, and among these is more like the leaves of the genus 

 Coussapoa than any other known to me, althouu'i it does not agree 

 exactly with all the features of any existing species. 



I am indebted to Robert Anderson for the specimen, which was 

 found as float in the northwestern outskirts of Cali a few hundred 

 feet north of Rio Cah at the edge of the Cauca Valley. It obviously 

 had fallen from one of the thick, hard sandstone beds which are here 

 interbedded with carbonaceous clays and sands. It is possibly of 

 the same age as the Tertiary plants described by Engelhardt from 

 Buga in the Cauca Valley. 



Order ROSALES 



Family MIMOSACEAE 



Genus INGA Willdenow 



INGA REISSI Engelhardt 



Plate 5, Figure 1 

 I ngareissi Engelhardt, Abh. Senck. Naturf. Gesell., vol. 19, p. 36, pi. 8, figs. 

 1, 2; pi. 9, fig. 8, 1895. 

 This species, described by Engelhardt from rather abundant 

 material from Santa Ana, Colombia, appears to be present in the 

 older travertine near Leiva, Department of Bayaca. 



« Berry, E. W., Proc. U. S. Nat. Mus., vol. 62, art. 19, p. 6, pi. 2, 1923. 



'Berry, E.W., Idem, vol. 59, p. 563, fig. 2, pi. 108, figs. 1-4,1921. 



10 nollick, A., Bull. New York Bot. Oard., v(51. 12, p. 290, pi. 6, fig. 1, 1924. 



" Berry, E. W., Johns Hopkins University Studies in Geology, No. 4, p. 168, pis. 4, 5, 1922. 



