SAPINDACE^. 205 



Plate 176, 177. 



iESCULUS, L. 



Calyx 5-lobus, pi. m. ingequalis. Petala 4-5, ina^qiialia, 

 inappendiculata. Stamina 5-8, saspissime 7, disco annulari 

 subunilaterali inserta. Ovarium sessile, 3-loculare ; loculis 

 2-ovulatis ; ovulis heterotropis. Capsula coriacea, 2 - 3-val- 

 vis, sajpius abortii 1 - 2-locularis, 1 - 2-sperma. Cotyledones 

 crassissimae, conferruminatas. — Arbores, foliis oppositis pal- 

 matim 5-9-foliolatis, floribus monoico-polygamis in thyrsos 

 terminales dispositis. 



iEscuLus, Linn. Gen. 462. Juss. Gen. p. 251. Torr. & Gray, Fl. N. 



Am. 1. p. 2.50. Endl. Gen. 5641. 

 HippocASTANUM, Toum. Inst. t. 612. Gfertn. Fr. 2. p. 135. t. 111. 

 Pavia, Boerh. Hort. Lugd.-Bat. t. 260. 



iEsccLus & Pavia, DC. Prodr. 1. p. 597. Michx. f. Sylv. Amer. 

 iEscuLus, Pavia, Macrothyrscs, «& Calothyrsus, Spacli in Ann. Sci. 



Nat. (ser. 2.) 2. p. 52. 



Horseclicstiiiit. Buckeye. 



Flowers monoecio-polygamous from the abortion of the 

 pistil. Calyx campanulate or tubular, mostly oblique and gib- 

 bous at the base posteriorly, five-lobed, deciduous ; the lobes 

 more or less unequal, quincuncially imbricated in aestivation, 

 the fourth posterior. Petals 5, alternate with the lobes of 

 the calyx, or often only 4 from the abortion of the anterior 

 one, hypogynous, unequal, often dissimilar, declined or erect, 

 inappendiculate, unguiculate, the margins of the claw or base 

 of tiie lamina commonly involute, imbricated in aostivation, 

 deciduous. Disk hypogynous, depressed, annular, usually 

 lobed, more or less gibbous, or produced posteriorly. Stamens 

 from 6 to 8, very rarely 5, commonly 7, inserted on the disk, 

 unequal : filaments subulate or filiform, more or less arcu- 

 ate or declined, usually exserted : anthers cordate-oblong or 



