POLYGONACEOUS GENERA. 35 
P. LAURINA. Of the size and the slender decumbent habit 
of P. remota, but leaves elliptic-lanceolate and about 7% 
inches long including the inch petiole, thin, sparsely and 
minutely strigose on both faces, more pronouncedly and densely 
so on the midvein, especially beneath ; ocreæ, as also the lower 
internodes of the stem, sparsely appressed-hairy ; spikes very 
slender, 1 to 2 inches long, on slender glandular-hirtellous pe- 
duncles; bracts rhombic-ovate, hairy, not ciliate. 
Catawba Island, in Lake Erie, northern Ohio, 5 Sept., 1897, 
E. L. Mosely ; the type specimens in U. S. Herb. Leaves with 
the outline and venation of those of Laurus nobilis. 
P. PORTERI. Decumbent, or the basal part prostrate, the 
stem 2 feet long, very densely leafy with an elongated and 
spreading foliage; lower internodes 2, upper 1 inch long, all 
striate-angled and more or less appressed-hairy; subsessile leaves 
5 to 7 inches long, lanceolate, acute, sparsely scabrous above 
both on the veins and elsewhere, especially toward the margin, 
this beset with long stout but appressed cilii, beneath sparsely 
hairy, but the hairs of the midvein much longer, setiform, ap- 
pressed ` ocrex somewhat villous-hirsute; spikes linear, 1 to 2 
inches long, their peduncles glandular-hispid; bracts ovate, 
acute, sparsely strigose on the back and bordered with long 
bristly cilii. 
Shores of the Delaware River at Easton, Penn., 20 Aug., 1895. 
T. ©. Porter, type in U. S. Herb. Evidently riparian, but 
surely no mere phase of the next, from which the long narrow 
subsessile spreading foliage must widely separate it. 
P. CoccinEA (Muhl.), Greene, Leafi. i. 24. Commonly upright, 
about 2 feet high, copiously leafy with petiolate and ascending 
foliage; blades ovate-elliptic or elliptic-lanceolate, 5 to 8 inches 
long, abruptly acuminate, the upper face muriculate-scabrous 
on midvein and all veinlets, the lower more emphatically so, 
the margin minutely serrulate-scabrous, the general surface 
nearly or quite glabrous; ocree very thin, sparingly strigulose- 
roughened with short sharp hairs: spikes 14 to 3 inches long on 
short glandular-hispidulous peduncles; bracts with scattered 
short spinulose hairs on the back and along the margin. 
