306 PROCEEDINGS OF THE AMERICAN ACADEMY. 



-t- -t- Species of the Atlantic and Gulf States, neither arctic nor alpine. 



A. Caroliniana, Walt. Stems several to many, glandular- 

 pubescent and viscid above. 3-8 inches in height, densely leafy near 

 the base: leaves linear-subulate, rigidulous, pungent, triangular in 

 section, channelled above ; the lower imbricated and more or less 

 squarrosely spreading ; the upper reduced, distant : cymes few- 

 flowered ; pedicels slender, ascending : sepals oval, 1^ lines in length : 

 petals broad, rounded at the apex. — Car. 141 ; Wats. & Coulter in 

 Gray, Man. ed. 6, 85. A. squamosa, Michx. Fl. i. 273 ; Ell. Sk. i. 

 520 ; Ton-. Fl. N. Y. i. 95. A. imbricata, Raf. in Desv. Journ. Bot. 

 (1808), i. 229. A. Rafinesquiana, Seringe in DC. Prodr. i. 409. 

 Alsine squarrosa, Fenzl ex Gray, Man. ed. 2, 57 ; Gray, Gen. ii. 34, 

 t. Ill ; Chapm. Fl. 49. — Pine barrens, S. New York to Florida. 



12. SAG-IN A, L. Pearl wort. (Name from the Latin sagi- 

 nare, to fatten ; the plants though small and delicate sometimes grow 

 abundantly in otherwise barren regions and are grazed by cattle.) 

 Low slender herbs commonly cespitose with filiform stems and subu- 

 late or filiform leaves ; about a dozen species inhabiting the temperate 

 and frigid parts of the northern hemisphere ; one being also widely 

 distributed in the southern hemisphere. — Gen. n. 33 G ; DC. Prodr. 

 i. 389 ; Gray, Gen. ii. t. 109. 



* Very slender, 2-5 inches high : the almost capillary stems several to many, 

 subsimple from near the base, usually several-flowered : the lowest flowers 

 distinctly axillary : leaves nearly filiform but flattened above, not pro- 

 liferous in the upper axils nor forming sterile lateral rosettes ; the basal 

 rosette seldom persisting : flowers very small, 4- or 5-parted. 



S. apetala, L. Very slender and commonly glandular-pubescent: 

 stems not numerous, procumbent or nearly erect : leaves very slen- 

 der, H-3 or 4 lines in length, scarcely flat: pedicels straight; flow- 

 ers normally 4-parted ; petals obovate. — Mant. ed. 2, 559 ; Fenzl in 

 Ledeb. Fl. Ross. i. 338; Torr. & Gray, Fl. i. 177. S. procumbens, 

 var., Benth. Brit. Fl. 120. — Labrador, Allen, to Pennsylvania, 

 infrequent but locally abundant in dry situations. A form with elon- 

 gated capillary stems is abundant in grassy situations near Hewitt's, 

 Bergen Co., N. J., Britton. Introduced at Auburn, California, Mrs. 

 Ames. Alsinella ciliata, Greene, which is ambiguously character- 

 ized in the Flora Francis. 126, as a very slender and diffuse plant 

 of compact habit, does not differ in its described characters from 

 this species. 



S. decumbens, Torr. & Gray. Annual, quite smooth or the 

 younger parts slightly glandular : stems several, decumbent or sub- 



