It seems to be only a var. of E. glomeratum 130a + c.d. below may be distinct This is Dublin's Kryptophyta leiocephala, though the calyx is not constantly deciduous. E. muriculatum, Torr. (var. of Dec.) 1st. q.v., with the calyx expanded to 12 mm., is apparently in very respect the same as this except that the anthers are conspicuously granulated with coarse scattered tubercles. The fruit of the present specimen, shown under the microscope, is a very densely granulated anther. Make two numbers for large + small calyxed forms. These are merely first attempts in Herb. 202. Everything in Herb. 202, is just into E. floridum. From 2 + 3'5 sp., 622 mm., — makes, with 424 from tributary of Columbia, 314 Miles, Davis (Col.) — E. diphyllum var. longifolium, Hookf. — an authentic specimen from Hartford has very thick fruit showing tendency to granulation, like my own 'tuber.' It is slightly broader than E. diphyllum but can hardly be considered distinct. The tubercles grow and in hairs in the same way, though coarse than usual in this spec. in Herb. 202, and the scattered tubercles are by no means constant.