rosace.t:. (rose faimily.) 149 



short nnd rloso ; petals roundish; fruit rod turning: to dark rrimson ; stone 

 smooth. — liiver-haiiks : coniinoii, espicially northward. May. — A tall shrub, 

 seldom a trt'o, with >;ra_vish bark ; the fruit very austere and astringent till per- 

 fectly ripe. (1*. obovhia, Bitjclow. 1'. serotina, of several authors.) 



8. P. sex'btina, Khrhart. (Wild Black Cheruv.) Lcavis oblong or 

 ItincroUitf-oli/uii//, taj)er-})oiiit(ii, serrate with incurred short and ailloiis tetth, tliieki«h, 

 sliinin;; above; racemes elongated; petals obovatc; fruit purj)lish-black. — 

 Woods: common. June. — A fine large tree, with reddish-brown liranches, 

 furnishing valuable timber to the cabinet-maker: al.so al)Oiin(ling eastward as a 

 shrub. Fruit slightly bitter, but with a pleasant vinous flavor. 



2. SPIRJEA, L. Meadow-Swket. 



Calyx 5-cleft, short, persistent. Petals 5, obovatc, equal, imbricated in the 

 bud (except in No. 6). Stamens 10-50. Tods (lollicles) 2- 12, several- (2- 

 15-) seeded. — Flowers white or rose-color, sometimes dioecious : rarely the parts 

 are 4 instead of 5. (Name probably from o-TTftpuw, to wind, alluding to the fit- 

 ness of the plants to be formed into garlands.) 



§ 1. rilYSOCARPOS, Camb. (Neillia, Don.) Shrubs with simple pal- 

 matili/lohed leaves and vmhel-like corymbs: jiods iitjlated and diverfjing when 

 grown, 2-4-seeded: seeds pntty large, roundish, bitter, with a thick crustuceou.* 

 seed-codt, and rather copious albumen ! 



1. S. opulifblia, L. (Nine-Bark.) Leaves roundish, somewhat S-lobed 

 and heart-shaped; jiods 2-5. — Rocky river-banks, especially westward. June. 



— Shrub 4° -10° high, with long recurved branches, and white Huwers, sue 

 cecded by membranaceous purplish pods : the ijld bark loose and separating in 

 numerous thin layers. 



§ 2. SPIRAEA proper. Shrubs, with simple leavef ; the stipules obsolete : podf 

 [v)ostlg 5) not inflated, several-seeded : seeds mostlij linear and with a thin or 

 loose coiit and no albumen, in this and the following sections. 



2. S. COrymb6sa, Raf Nearly smooth (l°-2° high); leaves oval of 

 ovate, cut-toothed towards the apex; corymbs large, flat, scvcnxl times compound, 

 flnweis irhite. — Alleghanies of Pennsylvania to Virginia and Kentucky. Juno 



— A form of S. bctuiivfolia, Pallas. 



•1. S. salicif61ia, I>. (Common Meadoav-Sweet.) Xearly smooth (2° - 

 3° high) ; leaves wedge-lanceolate, simply ur doubly serrate \floirtrs in a crowdtd 

 panicle, white or flesh-color ; pods smooth. — Wet or low groumls : alro culti- 

 vated. July. (Eu.) 



4. S. toment6sa, L. (HAnniiACK. Steeple-Bisii.) Slenui and louet 

 surface of the ovate or oblong serrate leaves very woolly ; flowers in short racemes 

 crowded in a dense panicle; jiods woolly. — Low grounds : coniinoni'st iu New 

 England. July. — Flowers rose-color, rarely white. 



§3. ULMARLV, Mancii. Perennial herbs, with pinnate leaves and panicUd 

 rymosp flowers : cnlijx rrfli-red : }iods 5 - 8 in number, 1 - 2-seedetl. 



5. S. lobkta, Murr. (Qceen or the Prairie ) Glabrous (2° -8° high) ; 

 leaves interruptedly jiinnate ; the terminal leaflet very large, 7 -O-jmrted, the 

 lobes incised and toothed ; stipules kidney-form ; panicle eompounil clustered. 



