Spira:a. rosacea. 4ir, 



of the calyx broad, shorter than the tube ; carpels 3-5, glabrous. — Raf. / 

 prec. decouv., S^' in Deso. jour. hot. 1814, /;. ICH; Ton.! Jl. I. p. 482; 

 Seringe, I. c. ; not of Mulil. S. clianiffidrifolia, Pvrsh, I. c, not of Linn. 

 S. ceanotliifolia, Ilorncm. liort. Hafn. ? S. crat;rgifolia, Link, enuin. 7 S. 

 befulitfolia, Wals. dendrol. t. G7. 



Canada? Mountains of Pennsylvania! Virginia! Georgia! and Ken- 

 tucky ! Maj'-June. — Stem 1-2 feet high, the branciics reddish. Leaves 

 2—3 inclies long, sometimes innisely tcwthcd above, rarely almost entire. 

 Coryml) 3-4 inches broad, 4-5 times compound ; tlie flowers (wliite or rose- 

 color) crowded on the uliimate divisions. — Perhaps not sufVicieiilly distinct 

 from S. befula}lblia, from which it chiefly difllrs in its larger leaves, more 

 compound pedunculate corymbs, and sliorter calyx-segments ; but Mr. 

 Nuttall's s])ecimen of S. densiflora, from Oregon, approaches it ; and a 

 specimen from Hooker, collected in Franklin's second over-land journey, is 

 certainly our plant. 



* * Flowers in dense panicles : calyx-segments triangular, reflexed : ofw/rs9-ll. 



4. iS. salicifolia (Linn.) : nearly glabrous ; leaves lanceolate or obovate- 

 oblong, simply or doubly serrate ; racemes in a crowded panicle ; car[)el3 

 5, glabrous.— ^L?«7i. I. c. ; Pall. fl. Ross. t. 21 ; Willd. ! spec. 2. p. 1055. 



fi. lanceolata: leaves lanceolate, often entire towards the base; panicle 

 small, simple, loose ; flowers white. 



y. paniculata {Alt.): leaves ovate-oblong ; branches of the panicle divari- 

 cate or spreading; flowers white. — S. alba, Du Roi ; Ehrh. ; Wats, dendrol. 

 t. 133. 



i5. laiifolia (Ait.) : leaves obovate or «bovate-oblong ; panicle compound, 

 loose ; flowers while or pale rose-color. — S. salicifolia, Michx. ! I. c. ; Torr. ! 

 fl. 1. p. 481 ; Darlingt. I. c. S. alba, Bigcl. fl. Bost. ed. 2. p. 197. S. 

 carpinifolia, Willd.! ennm. 1. p. 540. 



Swampy thickets and along streams, Newfoundland ! and the Saskatcha- 

 wan ! to Georgia ! common. June-July. — Stem 2-5 feet high ; tlie branch- 

 es usually purplish. Leaves variable in shape, pale or glaucous beneath. — 

 Queen-rtf-the-incadow. Meadoic-sweet. 



-/- 5. S. tomentosa (Linn.) : branches, paaicles, and lower surface of the 

 leaves lanuginous-touientose and rusty-colored ; leaves ovate or oblong, on 

 very short petioles, crowded, unequally serrate ; racemes short, dense, very 

 numerous, aggregated into a close virgate panicle ; carpels 5, tomentose, 

 si)reading. — Linn.! I. c. Michx.! I. c. ; Willd.! spec. 2. p. 1056; Scringe, 

 in DC. ! I. c. ; Hook. ! I. c. 



Low grounds, Canada ! (from Lake Winipeg) to Georgia! & Kentucky. 

 July. — Stems 2-3 feet high. Flowers small, flesh-colored or pale purple. 

 Seeds subulate at each end. — Hard-hack. 



•f-" 6. S. Dovglasii (Hook.) : young branches, panicle, and lower surface of 

 the leaves canescently tomentose; leaves oblong or elliptical, unequally 

 serrate towards the apex ; panicles dense Ij^-flowered, oblong, obtuse ; flowers 

 small ; stamens twice the length of the petals ; carpels 5, glabrous and 

 shining.— i^oot. .' fl. Bor.-Am. 1. p. 172. 



Plains of the Oregon near the sea, and Straits of Da Fuca, Douglas ! 

 Dr. Scolder! Nuttall ! July. — Nearly allied to S. tomentosa, but well 

 distinguished by the characters indicated by Hooker : the tomentum is al- 

 ways white. 



■4 7. S. Menziesii (Hook.): upper branches, peduncles, and cal^Tc slightly 

 pubescent ; leaves elliptical, coarsely and unequally serrate towards the 



