12. Eragrostis Secundiflora Presl. Clustered Love-Grass

Fig. 583

Poa interrupts Nutt. Trans. Am. Phil. Soc. (II.) 5: 146. 1833-37. Not Lam. 1791.

Eragrostis secundiflora Presl, Rel. Haenk. 1: 276. 1830.

Eragrostis oxylepis Torr. Marcy's Report, 269. 1854.

Smooth and glabrous, culms 6'-3° tall, erect, simple. Sheaths shorter than the internodes; ligule a ring of hairs; blades 2'-12' long, 1"-2" wide; panicle 1 1/2-6' in length, the branches 1/2'-1 1/2' long, erect or ascending; spikelets crowded or clustered, sessile or nearly so, strongly flattened, 8- 40-flowered, 3"-10" long, 1"-2 1/2" wide; lower scales acute, about equal; flowering scales 1 1/2"-1 3/4" long, acute, usually purple-bordered, the lateral nerves prominent.

In dry soil, Kansas and Colorado, south to Texas and Florida. Aug.-Sept.

13. Eragrostis Hypnoides (Lam.) B.S.P. Smooth Creeping Love-Grass

Fig. 584

Poa hypnoides Lam. Tabl. Encycl. 1: 185.

1791. Eragrostis rep tans Nees, Agrost. Bras. 514.

1829. Eragrostis hypoides B.S.P. Prel. Cat. N. Y.

69. 1888. Ne-eragrostis hypnoides Bush, Trans. St.

Louis Acad. 13: 180. 1903.

Culms 1 -18 long, extensively creeping, branched, smooth and glabrous, the branches erect or ascending, 1'-6' high. Sheaths shorter than the internodes, villous at the summits ligule a ring of short hairs; blades 2' long or less, 1/2"-1" wide, flat, smooth beneath, rough above; spikelets dioecious, 10-35-flowered, 2"-8" long; lower scales unequal, the first one-half to two-thirds as long as the second; flowering scales about 1 1/4" long, the lateral nerves prominent; scales of the pistillate flowers more acute than those of the staminate.

On sandy or gravelly shores, Vermont and Ontario to Washington, south to Florida and Mexico. Also in tropical America. Aug.-Sept.

14. Eragrostis Weigeltiana (Reichenb.) Bush. Hairy Creeping Love-Grass. Fig- 585

Poa Weigeltiana Reichnb. Mem. Acad. St. Petersb.

VI. 1: 40. 1831. Poa capitata Nutt. Trans. Am. Phil. Soc. II. 5: 146.

1837. Eragrostis capitata Nash, in Britt. Man. 1042. 1901. Ne-eragrostis Weigeltiana Bush, Trans. St. Louis Acad. 13: 178. 1903. E. Weigeltiana Bush, Trans. St. Louis Acad. 13:

180. 1903.

Plants dioecious. Culms branching and creeping, rooting at the nodes which send up branches 2 1/2'-4' tall; sheaths, at least those on the branches, pubescent; blades spreading or ascending, 1/2'-1 1/2' long, 1 1/2" wide or less, flat, lanceolate, pubescent; panicle 3/4'-1 1/2' long, nearly or quite as broad, oval; spikelets crowded, clustered, pubescent, 12-30-flowered, 3"-7" long, the flowering scales 1 1/2"-2" long.

In sandy, usually wet, soil, Nebraska to Louisiana and Texas; also in Mexico and northern South America. July-Oct.