356 PROCEEDINGS OP THE AMERICAN ACADEMY 



Eiver, June, 1884. Its resemblance in habit to small species of Coty- 

 ledon suggests the specific name. In this species, as in C. Leana and 

 some others, the stigmas are often two, instead of three, and the 

 capsule 2-4-valved. 



Calyptridium quadripktalum. Loosely branching from the 

 base and prostrate, with broad spatulate leaves 1 to 3 inclies long by 

 3 to 8 lines broad : racemes axillary and terminal, scorpioid and nearly 

 naked: flowers nearly sessile and mostly imbricated, the round-reni- 

 form sepals conspicuously nerved and scariously margined, the longer 

 2 to 4 lines broad, exceeding the four oblong or round-ovate nearly 

 equal petals : stigmas broad, nearly sessile : capsule oblong, 3 lines 

 long, 12-20 seeded. — On the head-waters of Eel River in Lake County, 

 California, Volney Rattan, June, 1884. It was also collected by Dr. 

 Torrey in the same county in 1865, and referred in the Botany of Cal- 

 ifornia to C. roseum. It differs from the other species in the increased 

 number of petals, and its broader sepals give it somewhat the appear- 

 ance of Spraguea, which genus now rests only on its three exserted 

 stamens and the elongated style. 



]\Ialvastrcm foliosum. Stout, tall and erect, simple above and 

 leafy to the summit, densely and coarsely stellate-pubescent throughout : 

 leaves thick, broadly ovate, subcuneate at base, shortly or obscurely 

 5-lobed, the lobes acute and acutely dentate, 1 J to 2 inches long, on 

 petioles a half-inch long ; flowers nearly sessile in axillary nearly ses- 

 sile panicles shorter than the leaves; bracts filiform: calyx G to 8 

 lines long, the lobes attenuate ; petals purplish, little exceeding the 

 calyx : carpels round-oblong, smooth, a line long. — Allied to M. den- 

 sijlorum^ more leafy above, more abundantly pube-cent, the leaves not 

 cordate at base, acutely lobed and toothed, the panicles somewhat less 

 dense, and shortly ped uncled. Found at Santo Thomas, on the coast 

 of Lower California, by C. R. Orcutt, September, 1884. 



SiDA ALATA. Erect, 3 to 6 feet high or more, branching, densely 

 stellate-tomentose : leaves ovate to oblong-ovate, cordate at base, acute 

 or obtusish, 1 to 2i inches long, exceeding the petioles: pedicels slen- 

 der, axillary, mostly solitary, exceeding the petioles, jointed above the 

 middle: calyx-lobes acuminate ; petals purplish, 5 lines long: carpels 

 numerous, the small dark-colored triangular coriaceous body (1 line 

 long) bicostate on the back, strongly reticulated on the sides, dehiscent 

 at the summit and bearing two broad membranous crests 2 lines long : 

 seed dark-colored. — A remarkable species on account of the early 

 development of the upper portion of the valves of the carpels into free 

 wing-like crests, in which respect it resembles Cristarin. But the 



