ROSACEJB. 93 



ered with a loose wool. Flowers small, pale purple, in a very dense elongated 

 conical raceme. Hard-hack. Steeple-bush. 



*** Herbaceous. Leaves pinnate. 



5. (S 1 . Aruncus Linn. : leaves twice or thrice pinnate, shining ; leafets 

 lanceolate-oblong, acuminate ; the terminal ones ovate-lanceolate, sharply 

 and incisely doubly serrate ; flowers very numerous ; carpels 3 5, smooth. 

 S. Aruncus var. Americana Pursh. 



Mountains. N. Y. to Geor. W. to Miss. June. %. Stem 46 feet high. 

 Leaves very large. Flowers white, small, in slender terminal spikes. 



Goat's Beard. 



6. S. lobata Jacq.: leaves palmate-pinnate, smooth, lower ones bipin- 

 nate ; terminal leafet much larger and 7-lobed ; lateral leafets 3-lobed ; the 

 lobes all serrate, mostly incised or toothed ; flowers in a compound cymose 

 panicle ; sepals reflexed ; carpels 6 8, smooth. 



Moist grounds. Penn. to Car. W. to Mich, and Ken. June, July. Tj.. 

 Stem 5 8 feet high, angled. Flowers in an imperfect cyme, deep rose-color, 

 large. Lobe-leaved Spircea. 



2. GILLENIA. Mcench Indian Physic. 

 (Etymology uncertain.) 



Calyx tubular-campanulate, contracted at the mouth, 5 -cleft. 

 Petals 5, linear-lanceolate, somewhat unequal, coarctate at the 

 claws. Stamens 10 20, mostly included. Styles filiform. 

 Carpels 5, distinct, 2-valved. 



1. G. trifoliata Mcench : leaves ternate; leafets lanceolate or obovate- 

 lanceolate, acuminate, serrate ; stipules small, subulate-linear, entire. Spi- 

 reea trifoliata Linn. 



Shady woods. Can. to Geor. W. to Miss. ; rare. June. ^.Stem 23 

 feet high. Flowers white or pale rose-color, few, in a terminal panicle. Medi- 

 cinal ; emetic, &c. Big. Med. Bot. iii. 11. 



Indian Physic. Bowman's Root. 



2. G. stipulacea Nutt. : radical leaves pinnatifid ; cauline ternate ; leafets 

 incisely serrate ; stipules foliaceous, ovate, incisely toothed and clasping. 

 Spirtea stipulata Muhl. 



Western part of N. Y. D. Thomas. S. to Car. and Louis. W. to Miss. June. 

 %. Stem 23 feet high, branching. It resembles the former, but can readily 

 be distinguished by its large clasping stipules. It possesses nearly the same 

 medicinal properties. American Ipecacuanha. 



3. DRYAS. Linn. Dryas. 



(Said to be derived from the Greek <5pt>y, the oak ; on account of a distant 

 similarity between their leaves.) 



Calyx 8 9-parted, naked without ; tube somewhat concave. 

 Petals 8 9. Stamens numerous. Carpels numerous, crowned 

 by a terminal style, at length terminating in a bearded plumose 

 awn. 



D. integrifolia Vahl. : leaves oblong-ovate, broader at base, entire or very 

 slightly toothed at the base ; sepals linear. D. tenella. Punk. 



