286 ERICACE^. (UKATH FAMILY.) 



Jlowers niimrrous on the branches of the large compoiind panicle, caJyx4ohes awl- 

 s/taped, iihout half the lcn;j;th of the pale-blue sniall corolla (of 3" long) ; stij/e 

 lirotrtidfd. — Dry woods and ro(L<, mountains of Virginia, Kentucky, and 

 southward. 



■*- t~ Flowers numciotts and nearly sessile, crowded in a long more or less leafy spike: 

 corolla almost wJieelshapcd, deeply 5-lol>ed ; pods end. 



4. C. Amei'icana, L. (Tall BLLLFLowiiu.) Stem mostly simple 

 (3°-G° high) ; leaves ovate and ovate-lanceolate, taper-pointed, serrate, mostly 

 on nnirgined petioles, thin, somewhat hairy (2^'-G' long) ; the slender style 

 protruded and curved. — Moist rich soil, New York to Wisconsin, and south- 

 ward. — Spike 1° - 2° long. Corolla light blue, 1' broad. Root annual. 



* European species escaped from gardens into roadsidis ; both perennials. 



5. C. GLOMiiKXTA, L. (Clusteued B.) Somcwliat hairy, stout and crcct, 

 1° high; stem-leaves oblong or laJieeolate, cordate-clasping ; flowers sessile, 

 clustered in the upper axils, forming a leafy head ; corolla open-bell-shaped, 1' 

 long. — Danvcrs, Mass., &c. (Adv. from Eu.) 



6. C. EAPUNCULOiDES, L. Smoothisli, slender, erect ; stem-leaves ovate- 

 lanceolate, pointed, the lower long-pctioled and heart-shaped ; flowers nodding, 

 single in the axil of bracts, forming racemes ; corolla oblong, 1' long. — K. Mas- 

 sachusetts; and Richfield Springs, New York, G. IF. Clinton. (Adv. from Eu.) 



2. SPECULARIA, Heister. Vexus's Looking-glass. 



Calyx 5- (or 3 -4-) lobcd. Corolla wheel-shaped, 5-lobed. Stamens 5, sepa- 

 rate ; the membranaceous hairy filaments shorter than the anthers. Stigmas 3. 

 Pod prismatic or elongated-oblong, 3-celled, opening by 3 small lateral valves. 

 — Low annuals ; the earlier flowers in the American species (§ Triodalli;s, 

 Raf.) minute and fruiting precociously in the bud, without expanding their im- 

 perfect corolla. (Name from Specidum Veneris, the early name of the common 

 European species.) 



I. S. perfoli^ta, A. DC. Somewhat hairy (3' - 20' high) ; leaves round- 

 ish or ovate, clasping by the heart-shaped base, toothed ; flowers sessile, solitary 

 or 2-3 together in the axils ; the upper or later ones only with a conspicuous 

 and expanding (purple-blue) corolla ; pod oblong, opening rather below tlie 

 middle. — Sterile open ground : common. May - Aug. 



Oroeu 5G. ERBCACEiE. (Heath Family.) 



Shrub.t, sometin}e.<^ herbx., with the flnirrrs ree/iilnr or nearly .<;o ; the Mnmens 

 an many or twice o.s" many as the 4 - ^i-lohed or 4 - 5-pctalled corolla, free 

 from but inserted with it : anthers 2-celled, commonly appendayed or open- 

 •"i7 ^1/ terminal chinks or pores, introrse (except in Suborder 3) : style 1 : 

 ovary 3-lO-cclled. Pollen compound, of 4 imitod grains, except in Sub- 

 order 4. Seeds small, anatropons. Embryo small, or sometimes minute, 

 in fleshy albumen. — A large family, very various in many of the charac- 

 ters, comprising four well-marked suborders, as follows : — 



