Sapindacece.] MEXICO. 281 



1. Tetrapteris Mexicana; foliis longiuscule petiolatis oblongo-lanceolatis acuminatis 

 adultis utrinque glaberrimis, umbellis pedunculatis subquadrifloris axillaribus subbinis, 

 petal is cordato-suborbiculatis basi cuneatis — Hab. Talisco. 



Folia juniora utrinque parce subsericea, adulta glaberrima, nervis subtus prominulis etiam glabris. 



1. Heteropteris tomentosa ; foliis subcoriaceis breve petiolatis ovatis obtusis cum mu- 

 crone margine recurvis supra velutinis subtus tomentosis rugosis versus basin glandulis 

 paucis instructis, petiolo eglanduloso, floribus cymoso-paniculatis, paniculae ramis eglan- 

 dulosis calycibusque ferrugineo-tomentosis. — Bannisteria tomentosa. Schlecht. in Linn. 

 11, p. 244? — B. paniculata. Fl. Mex. et De Cand. Prod. 1. p. 591? — Heteropteris 

 brachiata. H. B. K. et De Cand. Prod. 1. p. 591 ? 



The fruit is that of Heteropteris. 



Ord. XX. SAPINDACEiE. Juss. 



1. Sapindus glabrescens ; rachi foliorum aptera pubescenti-tomentosa, foliolis 2-4-jugis 

 oblongo-lanceolatis basi subinaequalibus integerrimis supra glabris subtus junioribus 

 per totam paginam adultis versus nervum medium subvillosis, racemis terminalibus 

 paniculatis, fructu globoso-subtrigono vix lobato. 



2. S. Drummondi ; petiolo aptero, rachi inter juga superiora submarginata pubescente, 

 foliolis 3-4-jugis basi inaequalibus oblongo-lanceolatis acuminatis subfalcatis supra elevato- 

 reticulatis subtus molliter pnbescentibus, panicula terminali divaricata.- — a; foliolis acute 

 acuminatis. Drummond FL Tex. III. n. 54. — (3; foliolis obtuse acuminatis. — Sapindus 

 insequalis. Schlecht. in Linn. 6. p. 419? (vix Lam.) 



The specimens in the present collection belong to our second variety. We have not seen the fruit of 

 either. 



1. Thouinia decandra. H. B. K. PL JEquin. 1. t. 56. — Hab. Acapulco. 



The stamens seem to vary from 8 to 10. 



1. Cupania scrobiculata. H. B. K. Nov. Gen. 5. p. 127. Schlecht. in Linn. 6. p. 419. 



1. Serjania Mexicana; foliis biternatis, petiolo nudo, petiolulis partialibus anguste 

 alatis, foliolis oblongis ovatisve saepius acuminatis inciso-dentatis cuneatim attenuatis 

 utrinque glabris vel subtus puberulis nervo primario subtus saepe molliter pubescente, 

 axillis venarum pilosis, racemis compositis, carpellis apice pubescentibus alis deorsum 

 dilatatis glabris S. mexicana. Willd. ? — Hab. Acapulco and Tepic. 



Our doubt as to this being Willdenow's plant arises from the stem being described as aculeated, even by 

 De Candolle, who gives a reformed character from the figure in the Flora Mexicana. In our specimen there 

 is certainly no appearance of prickles on the branches that bear the leaves and flowers ; on the older branches 

 or stem, however, from which the former arise, the (last year's?) peduncles are either wholly converted into 

 stout tendrils, or are so completely abortive as to resemble sharp tubercles. Probably, therefore, as the 



2 N 



