264 DECANDUIA MONOGYNIA 



red; tube short, somewhat pubescent ; limb with 5 large spreading oblong obtuse 

 lobes, rather unequal^ the upper one largest, with numerous yellow o* orange- 

 colored spots near the base, ami often emarginatc at apex. Stametis unequal, do* 

 dined, rather shorter than the corolla ; filaments pubescent at base. Style about 

 as long as the stamens; sti&ma subclavate, obtuso. Canute ovoid-oblong, ob- 

 tusely angled. Seeds numerous, minute. 

 flab. Bank of the Schuylkill; Black Rock: rare. Fl. Juno. Fr. 



Obs* This magnificent ornament of our mountain forests is rare in Chester 

 County; having only been observed along the Schuylkill, on the north-eastern 

 boundary of the County. Five or six additional species, as the genus is hero con- 

 stituted, are enumerated in the U. States. 



j- -j- Covolln polypetalous. 



210. CLETHKA. L. JSTutt. Gen. 392. 



[A7eMra,the ancient Greek name for the Alder ; which it somewhat resembles.] 



Calyx 5-partcil, persistent. Petals £». Stamens exserted. Style as 

 long as the stamens, persistent; stigmas 3. Capsule 3-cclled, 3-valved, 

 covered by the calyx. Seed* numerous. 



Shrubs: leaves alternate, deciduous: flowers in terminal spiked or paniculate 

 racemes. Nat. Orel. 170. Limll. Ekiceje. > 



1. C. alxtfolia, /,, Leaves cuncate-obovate, acute, coarsely serrate, 

 smooth and green on both sides; racemes spiked, bracteate, hoary - 

 tomentosc. Beck, BoU p. 218. 



Alder-leaved Clkthha. J V^o-Sweet Pepper-bush. White Alder. 



Stem 4 to 6 or 8 feet hieh, branched, with an exfoliating bark: young branches 

 pubcrulent. Leaves 2 to 3 inches long, and 1 to near 2 inches wide, acute, or with 

 a short acumination: serratures acuminate ; petioles 1 fourth to 1 third of an inch 

 long, and, with the midrib and nerves beneath, hairy-pubescent. Racemes 3 to (*> 

 inches long, simple, or often with 2 or 3 branches from the base, bearing numer- 

 ous fragrant (lowers ; pedicels short, each with a lance-linear bract at base twice 

 as long as the pedicel, — the peduncles, pedicels, bracts and calyx, covered with a 

 short white downy pubescence. Calyx-segments ovate-oblong, rather obtuse. 

 Petals white, obovatc-oblong, obtuse, twice as l«>rm as the calyx, slightly connected 

 at base. Stamens a little longer than the petals ; filaments rehVxed at apex before 

 flowering, causing the anthers to be inverted ; anthers erect after flowering, free 

 and acute at base, 2 lobed at summit ; lobes diverging, opening by ; pores'at aj ex. 

 Ovary subglobose, hairy; style hairy at base, finally a |little longer than the 

 stamens; stigmas 3. Capsule subglobose, umbilicate, obscurely triangular, or 

 torose, hairy, rather shorter than the calyx, and embraced by its ribbed segments. 

 Seeds angular, scabrous, or reticulately rugose, pale lawny. 



Ifab. Wet thickets ; E.Marlborough: not common. Fl. July, Aug. /V.Octebcr. 



Obs. Dr. Torrey (and I believe Mr. Elliott, also,) considers the anthers as lobed 

 at base, and inverted after flowering ; but, from the best examination I could make, 

 the facts appear to me as above described. This shrub was found by Mr. Samcel 

 Pbirce, near his residence, in East Marlborough, and brought to me in \ffff, I 

 have not met with it elsewhere in the County. Three or four other species have 

 been enumerated in the Southern States,— some of which Mr. Nuttall thinks arc 

 doubtful. 



