GAYLUSSACIA URSINA. 63 



It may be here mentioned that the flowers of Gaylussacia resi- 

 nosa and G. frondosa are subject to a frequent monstrosity, in 

 which the calyx and corolla become free from the ovary, somewhat 

 fleshy, and enlarged to eight or ten times their natural size ; the 

 stamens being also thickened, misshapen, and imperfect. Of the 

 same nature are the fleshy bodies borne by Azalea viscosa and 



§ 2. Vitis-Id^a. Ovarium 4 - 5-loculare, septis spuriis nullis. Corolla cylin- 

 drico- vel globoso-campanulata, 4 - 5-dentata seu 4-Ioba. Antherse exaristatse : fila- 

 menta pilosa. — Flores in racemis brevibus, bracteati et bibracteolati ; foliis persis- 

 tentibus. — (Vaccinii et Metagonise pars, Null.) V. Vitis-Idsea, L. V. myrtifo- 

 lium, Michx. (V. crassifolium, Andr.) V. ovatum, Pursh. 



§ 3. Batodendron. Ovarium pseudo-lO-loculare. Baccse (vix edulis) loculi 

 abortu oligospermi. Corolla patenti-campanulata, 5-Ioba. Antherse dorse 2-arista- 

 tSB : filamenta pilosa. — Flores in axillis foliorum ramealium solitarii, quasi race- 

 mosi, pedunculis filiformibus ebracteolatis. 



* Foliis sempervirentibus, antheris inclusis, baccis nigris. — V. arboreum, Marsh. 

 (V. diffusum, Ait.) {Ge7i. Batodendron, Nutt.) 



** Foliis pallidis deciduis, antheris exsertis, baccis albidis. — V. stamineum, L. 

 (V. elevatum, Soland.) {Gen. Picrococcus, Nutt.) 



§ 4. EuvAcciNiUM seu Myrtillus. Ovarium 5- rarius 4-loculare, septis spuriis 

 nullis. Corolla subglobosa vel urceolata, 5-4-dentata. Antherse dorso 2-aristatse : 

 filamenta glabra. — Boreali-alpinse ; foliis deciduis. 



* Flores (ssepissime decandri) in axillis foliorum solitarii. — V. Myrtillus, L. V. 

 Chamissonis, Bong. V. salicinum, Cha7n. V. myrtilloides, Michx. V. parvifoli- 

 um, Smith. V. ovalifolium, Smith. V. casspitosum, Miclix. 



** Flores (ssepius octaudri) 2-4-nati e gemmis propriis. — V. uliginosum, L. 



§ 5. Cyanococcus (id est Blueberry). Ovarium pi. m. pseudo-10-loculare. 

 Baccse (dulces) pleiosperma;. Corolla cylindracea vel urceolata. Antherse exaris- 

 tatse : filamenta pilosa. — Americance ; fasciculis florum, vel racemis brevissimis, 

 e gemmis squamosis propriis. 



* Foliis sempervirentibus.— V. Myrsinites, Lam. (V. nitidum, Andr.) 



** Foliis deciduis. — V. corymbosum, L., cum spec, cognatis, vulgo Blueberries. 



