442 



HYPERICACEAE 



6. Hibiscus L. 



Tall perennial herbs. 



Calyx segments triangular-lanceolate; capsule ovoid-conic, 

 long pointed. 



Calyx segments triangular-ovate; capsule globose-ovoid. 

 Low hairy annual of waste places. 

 Tall woody shrub, escaped from gardens. 



i. H. oculiroseus. 



2. H. Moscheutos. 



3. H. Trionum. 



4. H. Syriacus. 



i. H. oculiroseus Britton. In salt marshes: N. Y. and N. J. 

 N. Y. Frequent on L. I. and S. I. 

 N. J. Near Absecon, Atlantic Co., Island Heights, Ocean Co., 



South River, Middlesex Co. 



A rare and highly local species to be looked for elsewhere, as it 

 becomes better known, and studied in relation to the following 

 species. 



2. H. Moscheutos L. In brackish marshes: Mass. to Fla. and 



La., locally in saline, situations in the interior. 



Common throughout the salt marshes of our area, and along the 

 edges and scattered through the center of Pensauken Sound;* 

 ascending the river valleys. 



3. H. Trionum L. In waste places: N. S. to Fla., S. Dak. and 



Kan. Adventive from southern Europe. 



Locally common as a weed in most parts of our range. 



4. H. Syriacus L. Escaped from cultivation: Conn, to Ga. 



Rare as an occasional escape from gardens. 



Malvastrum spicatum (L.) A. Gray, M. coromandelianum (L.) Garcke, Sphaeralcea 

 miniata Cav., Modiola caroliniana (L.) G. Don., Pavonia hastata Cav. Urena lobata L. 

 and Gossypium barbadense L. have all been collected near the larger cities as waifs. 



HYPERICACEAE 



Sepals 4, in unequal pairs; petals 4. 

 Sepals and petals 5. 

 Petals yellow. 



Leaves normal, not reduced to scales. 

 Leaves reduced to minute, appressed scales. 

 Petals pink or greenish-purple. 



I. Ascyrum. 



2. Hypericum. 



3. Sarothra 



4. Triadenum. 



1. Ascyrum L. 



Erect, 3-6 dm. high; leaves clasping; styles 3 or 4. 

 Diffusely branched, 1-2.5 dm. high; leaves sessile; styles 2. 



* See Introduction paragraph 21 and pi. g. 



1. A. stans. 



2. A. hypericoides. 



