200 ORDER 73. ERICACEAE. 



white, 4-celled, many-seeded. [^ Delicate. L vs. very small , alternate, with 

 the flavor of the Checkerberry. Cor. small, wh., axillary, solitary. Fig. 248. 

 C. hispidula T. & G. In old woods, N. Eng., N. and W. Stems creeping, slender, 

 1 3f. Leaves oval, 4 6". Berries very small. May, June. 



5. CALLUNA, Salisb. HEATHER. Cal. of 4 scarious, colored sepals. 

 Cor. campanulate, 4-parted, shorter than the calyx. Stam. 8. Anth. 2- 

 crested on the back, cells opening laterally. Stig. 4-lobed. Caps. 4-celled, 

 8-scccled, 4-valvcd. > Lvs. opposite, minute, crowded. Fls. axillary, or 

 crowded in 1-sided racemes, scarious, roseate, with 4 6 scarious bracts. 

 <. vnlgarls Salisb. Low grounds, Tewksbury! Mass., Me., and N. 2f. Lvs. \". 



6. ERICA, L. HEATH. Cal. 4-parted. Cor. tubular, bell-, cup-, urn-, 

 globe-, egg-, or salver-form, the limb in 4 short lobes. Stam. 8. Sty. fili- 

 form. Caps. 4-celled, opening by 4 loculicidal valves. Scls. 2 GO in each 

 cell. ^ Very delicate, chiefly 8. African, branching and brittle. Leaves 

 whorled, rarely alternate, linear or acerous. Flowers nodding, cyanic. 



1 E. cinerea L. Scotch Heath. Stems clustered ; branchlets and liue?r Ivs. (1") in 



3X crowded : fls. racemous-clustered on the upper branchlets ; cal. colored, with few or 

 no bractlets, \" ; cor. purple, oval, 1" ; anth. included, awned beneath. Sandy " moors," 

 Nantucket Is. ! Found by Mrs. E. E. Atwater, June, 1868. Apparently indigenous. 



2 E. CARNEA. Very slender, 6 KX ; leaves in 3's or 4's, 2 3" long, obtuse ; flowers axil- 



lary; corolla 2", and calyx 1", flesh-color; anthers dark-purple, exserted. A_ps. 

 April. Of the 400 known species, only this is yet common in cultivation. 



7. KALMIA, L. AMERICAN LAUREL. Cal. 5-parted. Cor. with 10 

 prominences beneath and 10 corresponding cavities within, including the 

 10 anthers. Border 5-lobed. Fil. elastic. Caps. 5-celled, many-seeded. 

 ^> 5 Beautiful, N. American. Leaves entire, evergreen, coriaceous. Flow- 

 ers in racemous corymbs, white and red, in May July. 



* Flowers in terminal corymbs. Leaves thick, mostly acute Nos. 1, 2 



* Flowers in lateral corymbs. Leaves obtuse Nos. 3, 4 



* Flowers solitary, axillary. Sepals nearly as long as the corolla No. 5 



1 K. latifolia L. Calico Bush. Spoon-wood. Lvs. alternate and ternate, oval lance- 



olate, acute at each end, smooth and green on both sides ; corymbs terminal, viscidly 

 pubescent. Woods, Me. to O., Ky.. and Fla. 5-20f. Profusely and splendidly flowering. 



2 K. glauca Ait. Swamp Laurel. Branches ancipitons ; Ivs. opposite, eubsessilc, 



lanceolate, polished, glaucous beneath, revolute at the margin ; corymbs terminal, the 

 peduncles and bracts smooth. Bogs, Pa., and N. 2-3f. Lvs. 1'. Corymbs 8-10-flowered. 

 /3. rotttnarinifbUa. Leaves linear, more revolute, green beneath. 



3 K. aiigustlfolia L. Sheep-poison. Lvs. ternate and opposite, elliptical-lanceolate. 



petiolate, obtuse at each end, smooth ; corymbs lateral ; bracts linear-lanceolate. Hills 

 and copses, Can. to Ky. and Car. 2 4f. Flowers deep purple, few in each cluster. 



4 K. cuneata MX. Lvs. scattered, sessile, cuneate- oblong, obtuse, mucronate, glan- 



dular-pubescent beneath ; flowers white, in sessile clusters. Swamps, Car. : rare. 3f. 



5 K. hirsuta Walt. Slender, branched, hairy ; leaves scattered or opposite, ovate to 



linear-oblong, as long as the pedicels (4 "). Barrens, S. : common. If. Fls. 7"- 



8. EPIG2EA, L. TRAILING ARBUTUS. MAY-FLOWER. Cal. large, 5- 

 parted, with 3 bracts at base. Cor. salver-form, tube villous within, limb 



