WEEDS AND USEFUL PLANTS. 



twice as many as the lobes or petals ; anOiers 2-cellecl, often with aim like appendages^ 

 and frequently opening hy pores at the summit. Style 1. Ovary 3 -lO-cellcd. Fi-uit a 

 berry or capsule. Seeds small , with fleshy albumen. 



This is an interesting Order, — comprising some plants of a medicinal character, and a 

 number that are exceedingly beautiful — especially the Azaleas, Rhododendrons, Kalmias, 

 and m;iny species of the multitudinous genus (Erica) which is the type of the family. 

 §1. Huckleberry Sub-famly. Calyx-tube adherent to the ovary, which becomes a berry 



or berry-like fruit. Anther-cells nearly distinct, tapering upwards into a tube. 

 Ovary 10-celled, with a single ovule in each cell. Berry with 8-10 



largish seeds or nutlets. 1. Gaylussaoa. 



Ovary 4-5-celled, with several ovules in each cell. Berry many- 

 seeded. 2. Vaconium. 

 ^ 2. Heath Sub-family. Calyx free from the ovary. Corolla some- 

 times of nearly or quite distinct petals. Seed-coat mostly thin and 

 close-fitting. 

 Fruit a berry or drupe. 



Corolla dropping off after blossoming. 3. ARcrosxAPiiYLoa.- 



Fruit berry-like ; the calyx becoming enlarged and fleshy. 



Anthers 4-awned at the top. 4. Gaultheru, 



Fruit a dry pod ; the calyx not enlarging. 



Corolla ovate or oblong cylindrical, 5-toothcd. 5. Andromeda. 



Corolla bell-shaped or wheel-shaped, with 10 depressions or 



pouches. 6. Kalmta. 



Corolla of 5 separate petals. 7. Clethra. 



§3. Pyeola Sub-family. Calyx free from the ovary, 5-parted, per- 

 sistent. Corolla of 5 separate petals. Seeds with a loose transpa- 

 rent and cellular coat. 

 Flowers in a corymb or umbel. Style very short ; stigma broad and 

 orbicular. 8. Chisuphila. 



1. GAYLUSSA'CIA, K B. K. Huckleberry 



[Dedicated to Gay Lussac, a distinguished French Chemist.] 



Corolla ovoid or bell-shaped ; the border 5-cleft. Stamens 10 ; anthers 

 awnless ; the cells tapering and tubular above, opening by a pore or 

 chink at the summit. Fruit a berry-like drupe, containing 10 nutlets. 

 Leaves mostly deciduous and entire. Branching shrubs, commonly 

 sprinkled with resinous dots, bearing white (purple or red tinged) flowers 

 in bracted racemes. 



1. G-. frondo'sa, Torr. ^- Gr. Smooth ; leaves obovate-oblong, obtuse, 

 glaucous beneath ; bracts oblong or linear, deciduous, shorter than the 

 slender drooping pedicels ; corolla ovoid campanulate. 



Leafy Gaylussacia. Dangle-berry. Blue Tangles. 



stem 3-5 feet high, branching; branches rather slender. Leaves 1-3 inches long, 

 tapering at each end but obtuse at the apex, cuneate at base, on very short petioles. 

 Racemes lateral, loose, few-flowered ; pedicels 3>^ an inch to an inch long, with two minuis 

 subulate sub-opposite bractlets near the middle ; corolla white tinged with red. BeriHes 

 rather large, globose, dark blue, with a glaucous bloom when mature. 



Moist woods and thickets : New England to Kentucky. May - June. 



2. G, resino'sa, Torr. ^ Gr. Pubescent while young ; leaves oblong* 

 oval, at first ciliate and viscid with resinous dots ; pedicels short ; brt cts 

 and bractlets (reddish) small and deciduous ; corolla ovoid-conical 

 Eesinous Gaylussacia. Black Huckleberry, 



Stem 1-3 feet high, much branched. Leaves 1-3 inches long, thickly sprirkied rf?th 

 atoms and flat shining patches of yellow resinous matter beneath ; petioles short but diji 



