BUBIACEAE. 299 



1. HousTONiA COERULEA L. Bluets, Iniiocence, Quaker Ladies. M. p. 861. 



Moist and grassy places. Spring. 



2. HousTONiA LONGIFOLIA Gaertn. M. p. 862. Dry, open places. Summer. 



Philadelphia — Fairmount F&ik (Gi.). Bucks — (P.). Delauare — 

 Swarthmore, sporadic (Fr.). Chester — West Chester, Joshua Hoopes 

 (Fu.). Lancaster— York Furnace (Cr.) (Le.). Berks— (P.). North- 

 ampton — (P.). Dauphin — Harrisburg (Ca.), Paxtang (Mar.), Steelton 

 (Wn,). 



Ocea ?i— Manchester (C). 



2. OLDENLANDIA L. 

 1. Oldenlandia uniflora L. Clustered Bluets. M. p. 862. Low grounds. 

 Summer. 

 Burlington — Union Hall, Burlington (C). Camden — Banks of Dela- 

 ware (C), Camden, Mart. (B. C), Kaighn 's Point, I. Burk (Fu.). 

 Gloucester— 'WestviWe, Duck Pond, 1. Burk, and near Mickleton (He.), 

 Swedesboro (Li.). -Sa^em — Elsinboro (C), Riddleton (Cr.) (He.) (Wa.). 

 Cumberland — Sea Breeze (C). Cape May — Cape May (Or.), Ocean City 

 (He.), Five-mile Beach (Le.). Atlantic — Atlantic City (Pr.). Ocean — 

 Manchester (C), Forked Eiver (Wn.). Monmouth— l^orfh Spring Lake, 

 Como, Brielle (C). 



New Cosine— Townsend, Commons. 



3. CEPHALANTHUS L. 

 1. CEPHALANTHUS occiDENTALis L. ButtoH-bu^h. M. p. 863. Swamps 

 and along streams. Summer. 



4. MITCHELLA L. 

 1. MiTCHELLA REPENS L. Partridge-berry. M. p. 863. Woods. Spring. 



5. DIODIA L. Button-weed. 



Leaves linear-lanceolate ; style entire ; stigmas capitate. 1. D. teres. 

 Leaves lanceolate or oval; style 2-cleft; stigmas filiform. 2. D. Virginiana. 



1. DiODiA teres Walt. M. p. 864. Dry or sandy soil. Summer. 



2. DiODiA Virginiana L. M. p. 864. Moist soil. Summer. 



Philadelphia— ^SN J Yard, naturalized. Dr. Geo. Smith (Fu.). 

 Cape May— CaTpe May. 



6. GALIUM L. Bedstraw. 



Fruit dry, smooth, hispid or roughened. 

 Annuals (exce})t Nos. 1 and 2).. 



Flowers yellow; leaves narrowly linear. 1. G. verum. 



Flowers white or greenish-white. 



Fruit smooth or glabrous. 2. G. Mollugo. 



Fruit granular or tubercled, not bristly. 3. G. tricorne. 



Fruit densely bristly-hispid. 4. G. Aparine. 



Perennials. 



Fruit bristly-hispid (or becoming glabrous in No. 8). 



Leaves in 4 's, 1-nerved. 5. G. pilosum. 



Leaves in 4 's, 3 -nerved. 



Leaves lanceolate, oval or ovate; flowers in open cymes. 



