ORDER 73. ERICACEAE. 479 



5 C. aparinoides Ph. St. flaccid, slender, branching above, triangular, the 

 angles inversely aculeate; Ivs. lance-linear, subentire; Us. terminal. A slender 

 annual, found in wet meadows, Can. and Wis. to Ga. St. 12 to 18' high, its 3 

 angles rough backwards, by means of which it supports itself upright among the 

 grass. Lvs. smooth on the upper surface, 1 to '2' hi length. Fls. broad, bell- 

 shaped, 4'' wide, white, on thread-like, flexuous peduncles at the top of the stem. 

 Jn. Aug. 



/?. ERINOIDES. Lvs. elliptical, less than 1' in length ; fls. smaller. (C. erinoi- 

 des MX.) 



6 C. divaricata MX. Glabrous, erect, with slender, divaricate, paniculate 

 branches; Ivs. narrow-lanceolate, pointed at each end, sharply dentate-, fls. cam- 

 panulate, pendulous on the slender branchlets. Rocky woods, along the Mts., 

 Ky., Va, to Ga, Plant about 2f in height. Lvs. 2 to 3' by 2 to 5". Corolla 

 exactly bell- shaped, 4 to 5" broad, its segments re volute. Jl., Aug. 



7 C. glomerata L. St. angular, simple, smooth; Ivs. scabrous, oblong-lanceo- 

 late, cordate-sessile, lower petiolate ; fls. crowded in a dense head; cal. lobes acum- 

 inate, half as long as the funnel-shaped coroUa. A European species, cultivated 

 in gardens, naturalized at Danvers, Yt. (Oakes.) It is a handsome plant, about 

 2f high, with numerous bell-shaped flowers of an intense violet-blue, varying to 

 pale purple. In cultivation it has many varieties. f 



8 C. Medium L. CANTERBURY BELLS. St. simple, erect, hispid; Ivs. 

 lanceolate, obtusely serrate, sessile, 3-veined at base ; fls. erect bell-shaped, with 

 an obtuse base. <) An ornamental border flower, from Germany, and of the 

 easiest culture. Root biennial Stem several feet in height, undivided, rough 

 with bristly hairs. Flowers very large, the base broad, limb reflexed, of a deep 

 blue. Several varieties occur with double or single flowers, of blue, red, purple 

 and white corollas. June Sept. f 



9 C. lanuginosa, with ovate, crenate, rugous and somewhat woolly Ivs. and 

 rather large flowers, acute at base, is sometimes cult, and also a few other species. 



2. SPECULA'RIA, Heist. (Lat. speculum, a mirror; alluding to 

 the flower of S. speculum.) Calyx 5-lobed, tube elongated; corolla 

 rotate, 5-lobed ; stamens 5, distinct, half as long as the corolla, filaments 

 hairy, shorter than the anthers ; style included, hairy ; stigmas 3 ; cap- 

 sule prismatic, 3-celled, dehiscing in the upper part. CD Fls. axillary 

 and terminal, sessile, erect. 



1 S. perfoliata Lam. St. simple, rarely 'branched, erect; Ivs. cordate, crenate, 

 amplexicaul; fls. sessile, aggregate, axillary. Plant somewhat hairy, a foot high, 

 found in fields and roadsides. The strict, ' upright stem, is furnished with distant 

 short, alternate, heart-reniforin, veiny, stem- clasping leaves, containing 1 4 

 crowded flowers in the concavity of their upper surface. Flowers axillary and 

 terminal, the upper clusters larger. Corolla blue or purple, with spreading seg- 

 ments, calyx seg. acute, lanceolate. Jn., JL (Campanula amplexicaulis MX.) 



2 S. Ludoviciana Torr. St. at length producing numerous slender branches ; Ivs. 

 broad-ovate, acute, subentire, sessih or slightly amplexicaul; fls. axillary and ter- 

 minal on the s)ender branches. La. (Hale) and S. Car. (Curtis.) Plant similar in 

 size and appearance to No. 1, but its flowers are rather smaller, with quite slen- 

 der ovaries. 



3 S. speculum L. VEXUS' LOOKIXO-GLASS. St. diffuse, very branching; 

 Ivs. oblong-crenate ; fls. solitary ; scales at the base of the corolla sometimes 

 wanting. A pretty border flower, named from the form of the blue corolla, which 

 resembles a little, round, concave mirror (speculum). Aug. f 



ORDER LXXIII. ERICACEAE. HEATHWORTS. 



Plants shrubby or suffruticous, sometimes herbaceous with Lvs. simple, alternate 

 or opposite, mostly evergreen, without stipules. Corolla regular or somewhat ir- 



