368 . LXXVUI. ERICACEAE. VACCINIUM. 



Conspectus of the Genera. 



( Cor. urceolate. Erect undershrubs, . Vaccinium. \ 



< $ segments reflexed. Oxycoccus. S 

 Ovary adherent to the calyx tube. ( Cor. deeply 4-cleft, I segments spreading. Cliwgencs. 3 



f Berry the matured, fleshy calyx. Seeds 00. . Gaultheria. 7 



(Drupe the matured ovary, 5-seeded. . . . Arctosta-plujlusA 



t opening betw. cells(septicidal, 115, 1,2). Menziesia. 6 



< ( Sta. 10. Andromeda. 5 



Capsule (op'ng into the cells (loculicidal). (Sta. 8. Erica. 16 



$ anthers free. Prostrate undershrub. Epigcra. 9 



] Corolla salver-form, holding the anthers in 10 pits. . . Ka/mi.a. id 



(Petals 4 Anth. opening by clefts. . Azalea. 11 

 I united. LCorolla funnel or bell-form. (. Anth. opening by pores. . Rhododendron.\3 



Shrubs $ Lvs.deciduous, serrate. Ciethra. 8 



verdant, ] $ Caps.S-celled. (Lvs. evergreen, entire. Leiophyllum. 14 



erector i Ovary $ regular. { Capsule 5-celled Ledwn. 15 



prostrate. I free. I Petals subdistinct, J very irregular Rhodora. 12 



l Flowers racemed. . 



< Flowers solitary, 

 (verdant, leaves mostly all radical. ( Flowers corymbed. . .. 



\ Flower solitary. 



\ Petals distinct. \ Flowers racemed. 

 Herbs . . (.destitute of leaves or verdure. ( Petals united. Flowers racemed. 



SUBORDER 1. VACCIXEJE. 



Pyrola. 17 



Moneses. 18 



Chimaphila. 19 



Monotropa. 20 



hypopitys. 21 



Pterospora M 



Ovary adherent to the tube of the calyx, becoming a berry or drupe- 

 like fruit. Shrubs with scattered leaves. 



1. VACCINIUM. 



Calyx superior, 5-toothed ; corolla urceolate, campanulate or cyl- 

 indric, limb 4 5-cleft, reflexed ; stamens twice as many as the lobes 

 of the corolia, generally included ; anthers with 2 awns on the back, 

 or awnless ; style erect, longer than the stamens ; berry invested with 

 the calyx, 4 or 5 (rarely 10)-celled, cells many-seeded. Shrubs or 

 undershrubs with scattered Ivs. Fls. solitary or racemose, while or red- 

 dish. Fr. generally eatable. 



^ Flowers racemose. Corolla urceolate^ ovoid or oblong-cylindric. 



1. V. RESINOSUM. Ait.' Black Wlwrtlcberry or Huckleberry, 



Branches cinerous-brown, villose when young ; Ivs. oblong-ovate or ob- 

 .ong-lanceolate, rather obtuse, entire, petiolate, with resinous dots beneath ; roc. 

 lateral, secund; pedicels short, subbracteolate ; cm: ovoid-conic, at length sub- 

 campanulate, 5-angled ; berries black. This common shrub of our woods and 

 pastures is about 2f high, very branching. Leaves 1 2' long, as wide, rare- 

 ly acute, shining beneath with resinous patches and spots. Petioles 1" in 

 length. Flowers in lateral, dense, corymbose clusters, small, drooping. Corol- 

 las contracted at the mouth, greenish or yellowish-purple, longer than the sta- 

 mens but shorter than the style. Berries black, globose, sweet and eatable, ripe 

 in August. May. 



/?. Lvs. and berries covered with a glaucous bloom. 



y. Lvs. larger ; pedicels longer than the corolla. 



2. V. CORYMBOSUM. (V. fuscatum. Ail.') Blue Bilberry. High WJiorlle- 

 berni. Flowering branches nearly leafless ; Ivs. oblong-oval, acute at each 



end, mucronate, subentire, pubescent when young; roc. short, sessile; CDT. 

 ovoid-cylindrical. A tall shrub, 4 8f high, growing in shady swamps and by 

 rnud ponds. Branches few, the young ones green or purplish. Leaves smooth 

 on both sides except a slight pubescence on the veins beneath, tipped with a 



glandular point, formed by the prolonged rnidvein. Flowers numerous, nod- 

 ing, generally appearing in advance of the leaves. Pedicels shorter than the 

 corollas, with colored scales or bracts at base. Corolla large for the genus, pur- 

 plish-white, slightly contracted at the mouth. Stamens included. Style often 

 exserted. Berries large, black, often with a tinge of purple, subacid. Jn. 



/?. 1 (V. dismorphum. Michx.} Fls. and Jr. much smaller; cal. very obtuse; 

 fty. exserted; berries black. Grows with the other; frequent! 



