( 276 ) 
a single sessile flower; leaves linear; flowers 
rose-color.—©®. Niles. Spring. 
4. P. noposum Pers. Flowers spicate; 
bracts scarious, each bract protecting a fasci- 
cle; stamens 6; styles 2, included; leaves cune- 
ate at base; flowers pale-—@©. Marine Hos- 
pital. Spring. 
5. P. MUHLENBERGII Watson. Flowers spi- 
cate; bracts scarious, each bract protecting a 
a fascicle; stamens 5; style 2-cleft, exserted; 
leaves cordate at base; flowers rose-color.—2f. 
Marine Hospital. Spring. 
6. P. convotvoLus L. Stem twining; leaves 
hastate; flowers pale.—©. Cultivated grounds. 
Summer. 
Ballast weed, introduced from Europe. 
3. Eriogonum Michx. 
Involucre o-flowered, campanulate, slightly 
angulate, 6-dentate. Flowers % pedicillate, 
exserted, seated on a receptacle with scarious 
bracts. Perigonium 6-parted, 2-seriate. Sta- 
mens 9, in pairs opposite to the external lobes; 
singly to the internal ones. Styles 3; stigmas 
capitate. Fruit a 3-angled, rarely a lenticular, 
akene. Peduncles 2-3-chotomous. 
1. E. aneunosum Benth. Involucre nerve- 
less, hemispherical ; flowers pale.—©. Niles. 
Spring. 
