Ordbr 73.— ERICACEAE. 479 



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

 angles inversely aculeate; lvs. lance-linear, subeutiro; lis. 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 tho 

 grass. Lvs. smooth on the upper surface, 1 to 2 in length. Ha broad, beiL 

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

 Jn. — Aug. 



p. erikoides. Lvs. elliptical, less than 1' in length ; lis. smaller. (C. erinoi- 

 dos Mx.) 



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

 branches; lvs. narrow-lanceolate, pointed at each end, sharply dentaie ; fls. cam- 

 panulate, pendulous on the slender brauchlets. — Rocky woods, along the Mts., 

 Ely., Va. to Ga. Plant about 2f in height. Lvs. 2 to 3' by 2 to 6". Corolla 

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



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

 late, cordate-sessile, lower petiolate; fls. crowded inadense liead; cat. lobes acum- 

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

 in gardens, naturalized at Danvers, Vt. (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; lvs. 

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

 an obtuse base. — (D 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 lvs. and 

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



2. SPECULARIA, 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 a ; 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; lvs. 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-reniform, veiny, stem- clasping leaves, containing 1 — -1 

 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 Ms.) 



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

 broad-ovate, acute, subentire, sessile or slightly amplcxicaul ; fls. axillary and ter- 

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

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

 der ovaries. 



3 S. speculum L. Venus' Looking-glass. St. diffuse, very branching; 

 lvs. oblong-crenate ; fls. solitary ; scales at tho 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 LXXIIL ERICACEJE. LTkathworts. 



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

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



