68 ERICACEJS. (HEATH FAMILY.) 



lower mostly apetalous, with 3 or 4 short calyx-lobes; the upper with 5 longer calyx- 

 lobes, which are shorter than the blue or purple corolla. Capsule with openings near 

 the top. 



2. S. perfoliata, A. DC. Stouter, with clasping cordate leaves. 



3 HETEROCODON, Nutt. 



Flowers of two sorts. Stamens and styles as in Campanula. Capsule 3-angled. 

 Otherwise sufficiently characterized in the synopsis. 



1. H. rariflorum, Nutt. A delicate annual, with leafy filiform stems, diffusely 

 branching; the thin leaves clasping by cordate bases, coarsely toothed. Corolla blue. 



4. CAMPANULA. Tourn. BELLFLOWER. 



Flowers all alike. Calyx-lobes narrow. Corolla campanulate or near it, 5-lobed. 

 Stamens 5; filaments dilated at the base. Capsule 3-5-celled, opening on the sides or 

 near the base by 3 to 5 small uplifting valves leaving round holes. 



1. C. prenaiithoides, Dur. A foot or two high; stems several-flowered; leaves 

 ovate-oblong or lanceolate, sharply serrate, sessile, or the lower short-petioled; lobes of 

 the blue corolla narrowly lanceolate, widely spreading; style long exserted; capsule 

 5-ribbed. 



OKDER 33. ERICACEAE. 



"Woody plants or perennial herbs, with symmetrical and mostly regular flowers; the 

 stamens as many or twice as many as the petals or lobes of the corolla, and inserted with 

 but rarely upon it; the anthers 2-celled, and the cells opening by a terminal pore; the 

 ovary with as many cells as the divisions of the corolla or calyx; the seeds small. Corolla 

 generally gamopetalous, sometimes of distinct petals, the insertion and that of the sta- 

 mens hypogynous, or when the calyx is adnate epigynous around an annular disk. Style 

 single. Leaves simple. 



SUB-ORDER 1. VACCINIE^B. 



Shrubs. Ovary wholly or partly inferior. Fruit a berry, crowned with 



the vestiges of the calyx-teeth Vaccinium. 1 



SUB-ORDER 2. ERICINE.33. 



Shrubs or trees. Calyx free. Corolla gamopetalous (in our own species). Stamens 

 hypogynous. Anthers introse in the bud. 



