OKDER 73. HEATHWORTS. 347 



Analysis of the Genera 



Shrubs or trees, or shrublets 2 



Herbs evergreen, with green herbage and leaves m 



Herbs leafless, without verdure. Bracts scale-like.. . .n 

 2 Calyx adherent, crowning the berry in fruit... .a 

 2 Calyx free from the ovary, or inferior. . . .3 



8 Petals united into a gamopetalous corolla.. . .4 



8 Petals entirely or very nearly separate and distinct ...5 



4 Flowers 4-parted. Stamens 8 b 



4 Flowers 5-parted. Stamens 5 or 10 



5 Pods 2 or 3-celled, cells only 1-seeded. Southern h 



5 Pods 3-celled, cells many-seeded g 



5 Pods 5 or 7-celled, cells many-seeded. . . .h 



6 Corolla urn-shaped (oval or globular), lobes small c 



6 Corolla not urn-shaped, open or spreading e 



a Erect shrubs with 5-parted tlowers and 10-seeded berries. 



Huckleberries. GAYLUSSA'CIA. 

 a. Erect shrubs with 5-parted flowers and oo-seeded berries. 



Blueberties. VACCIN'IUM. 



a Trailing shrublets. Corolla 4-cleft, reflexed. Fr. red. Cranberry. OXYCOC'OUS. 1 

 a Trailing shrublets. Corolla 4-cleft, spreading. Fruit white. 



Boxberry. CHIOS 'ENES. 2 



Leaves linear-acerose, whorled or crowded. Cultivated. Heath. ER'IOA. 



b Leaves oval-lanceolate. Shrub, 4f. high. Penn. S. ) Mountain Heath MKNZIK'PIA * 



c Pod dry, opening bet. the cells. Lvs. lin. N. ) 



c Pod dry, opening into the cells d 



c Drupe fleshy, 5-seeded. Shrubs trailing. Bearberry. ARCTOSTAPH'YLOS. 



c Berry fleshy, many-seeded. Little shrublets. CJieckerberry. GAULTHE'RIA. 8 

 d Shrublet moss-like, on high Mts. Leaves linear. Moss Andramede. CASSI'OPE. 

 d Shrubs with ample leaves. Pod-valves entire. Andromede. ANDROM'EDA. 



d Tree with ample leaves and slender racemes. Sorrel-tree. OXYDEN'DRUM. 



e Corolla saucer-form, holding the anthers in 10 pits. Laurel. KAI/MIA. 4 



e Corolla salver-form, very fragrant. Trailing. May-flower. EPIO^'A. 5 



e Corolla funnel or bell-form, with spreading lobes. . . .f * 



1 Stamens 5, included. Plant and leaves very small. Mts. N. H. LEIOSELED'RIA. 



f Stamens 5 (rarely more), long-exserted. Corolla funnel-form. AZA'LEA. 



f Stamens 10 (rarely fewer), exserted. Corolla bell-form. Bay. RHODODEN'DRON. 



g Leaves alternate, deciduous, serrate. Flowers racemed. CLE'THRA. 



g Leaves mostly opposite, evergreen, entire. Flowers umbeled. 



Sand Myrtle. LEIOPHYL-LUM. 



h Flowers 5-parted. Corolla regular. Labrador Tea. LE'DITM. 



h Flowers 5-parted. Corolla irregular. KHODO'RA. 



h Flowei* 7-parted. regular. Stamens 14. 8. BEFA'RIA 



