308 PROCEEDINGS OF THE AMERICAN ACADEMY. 



for the genus : petals not quite equalling the calyx : capsule ovate, 

 conic, even before dehiscence considerably exceeding the sepals ; the 

 dry valves fully twice their length : stamens 5-10. — Rel. Haenk. ii. 

 14; Fenzl in Ledeb. Fl. Ross. i. 339; Wats. Bot. King Exp. 41. 

 S. saxatilis, Wimm. in Lange, PI. Groeul. 133. Spergula saginoides, 

 L. Spec. 441. Alsinella saginoides, Greene, Fl. Francis. 125. — 

 Labrador, Allen, to Greenland, Alaska southward along the Rocky 

 Mts. to New Mexico; also in Mariposa Co., Calif., Congdon. 



S. nivalis, Lindbl. Very condensed, ^-1 inch high : leaves subu- 

 late, or linear subulate, 2-3 (rarely 5) lines long, forming one or 

 more dense rosettes; cauliue leaves few and short: pedicels spread- 

 ing, 5 lines in length, straight or curved but scarcely ever hooked 

 at the summit : petals equalling the purple edged sepals, about a 

 line in length. — Bot. Not. 1845, 66; Hook. f. Arc. PI. 287, 322; 

 Babington, Seem. Journ. Bot. ii. 340; Wats. Bot. King Exp. 42. 

 S. intermedia, Fenzl, 1. c. i. 339. Arenaria ccespitosu, Vahl, Fl. 

 Danica, xiii. t. 2289. — A rare plant, first collected in America by 

 Dr. Watson in the Uinta Mts. in 1869 (Herb. Dep't of Agric.) ; since 

 found in Alaska, without the exact locality, Dad ; Kyska Harbor, 

 Harrington ; and also in the Rocky Mts. of Colorado near Gray's 

 Peak, Patterson. The species has been regarded by some authors, 

 and perhaps rightly, as a boreal or high alpine form of the preceding. 



* * * Distinctly fleshy : stems not filiform, more or less branched, several- 



flowered : flowers 5-parted : species of the Pacific coast. 



S. crassicaulis, Wats. Smooth : stems several or many, 

 branching, 1^—5 inches long: leaves linear, pungent, thickish, 2|— 7 

 (rarely 12) lines long ; the basal forming a rosette which may 

 persist or not; the cauline connate by broad searious membranes: 

 pedicels numerous, straight : petals and sepals subequal, \\ lines in 

 length: capsule \~ \ longer. — Proc. Am. Acad, xviii. 191. Alsinella 

 crassicaulis, Greene, Fl. Francis. 125. — Beaches of Pacific coast, 

 Marin Co., Calif., Congdon; Monterey Co., Michener fy Bioletti ; II- 

 waco, Washington, Henderson. Distinguished from the Japanese S. 

 maxima, Gray, by its glabrous peduncles and calyx. 



* * * * Stems simple, 2-6 inches in length ; upper leaves short, proliferous, i. e. 



bearing fascicles of minute leaves in their axils: flowers 5-parted: petals 

 exceeding the calyx : species of the Atlantic Slope and Great Lakes. 



S. nodosa, Fenzl. Perennial : stems several to many, decum- 

 bent, rooting at the base, often 5-6 inches in length: lower leaves 

 filiform ; the upper subulate, only a line in length, bearing a tuft of 

 undeveloped leaves in the axils, thus giving a nodose appearance to 



