GERAXIACE.E SAPINDACE.E 



315 



closely appressed to the tube, the tail of the spur curled under the spur: 

 pod opening elastically when ripe, throwing tin- seeds (the 5 valves quickly 

 curling from above downwards). Common in swales. 

 I. aurea, Muhl. (J. pallida, Nutt.). Fellow jewel- 

 weed. Fig. 4G3. Leaves usually stronger-toothed, the 

 teeth usually ending in -harp points: flowers 1 in. long 

 and much broader than those of I. biflora, clear yellow, 

 the upper lip of two part-, the lower also of two parts 

 and nearly horizontal, the 2 sepals at apex of pedicel 

 large and not closely appressed, tail shorter : pods as 

 in the other. Less common than the other, hut often <0 



growing with it. n;.;. [mpatiens aurea. 



XV. SAPINDACEJ2. Soapberry or Maple Family. 



Trees or shrubs, of various habit: flowers polvpetalous or apeta- 

 lous, often inconspicuous, 4- or 5-merous: stamens 10 or less, borne 

 on a fleshy ring <u - disk surrounding the Bingle 2-3-loculed pistil : fruit 

 a pod <>r samara. A various family, largely tropical. Genera aboul 

 75, and Bpecies about tiOO to 700. Maple, box- elder, buckeye, borsi - 

 chestnut, bladder-nut, are familiar examples. 



1. ACEK. M w-l.l .. Box-sldeb. 



Trees or shrubs, with opposite lobed or parted leaves (pinnate In boi 

 elder : Bowers small and greenish or reddish, In earlj spring and often 

 from winter buds, In box-elder dioecious, In true maples 

 perfect (or Imperfectly diclinous) : calyx aboul 5-cleft: 

 j> petals 5 or none: Btamens usually .': 8: fruit a samara 



With 2 -oil- and 2 WingS. TWO Shmbb] w 1- maples 



are common In -one ; the country. 



:i. Maph U ? - . palmatt ly loin '! 



l,. / from lateral winter buds, preceding tl,. 



leaves: fruit maturing very early. 

 A. saccharinum, Linn. [A. dasyearpun Wangh). 

 Whit, or tilvi i- maph Pig. HJ4, !'" 

 era greenish, with do petal- : l< a\ i - 

 bed, Bilvery white beneath, the narrow 



K.J 



Acer acchaiinum 



Very deeply 





' 



divisions lobed and toothed: fruit With lurge spreading (^ ', \/ 



, downy when young. Common along -mam- ami In \ , ^3f 





t 



low grounds; much planted. Then - cut leaved i"rm 



known as Wier'- maple, popular as lawn tree. v 

 white. Linneus thoughl It to be the sugar maple, hence 

 his name " Baccharinum." 



A. rubruin, I. inn. Bed, vamp maple, I 



Tree usuallj of only medium nlse: Bowers red, with narrow oblong pt>tala; 



i nin 



