which some, at least, seemed to be pretty definitely characterized geographical races. 

 The specimens belonging to this species, to be found in my collections, seemed, in some 

 respects, to differ from those already described. They are readily distinguished by their 

 vigorous growth, with erect, ribbed, but always completely glabrous culms, to above 1 m. 



Fig. 74. Trisetum flavescens (L.) P. de Beauv. subspec. copiosum nov. 

 subspec. (I'/i). a. Lower pale. — b. Spikelet. — c and d. Glumes. 



high. Even below the nodes, the culms are always completely glabrous. The sheaths 

 are round, slightly inflated, considerably shorter than the internodes, which is also the 

 case in the lower ones. Owing to this fact, the specimens remind of /. glabratum 

 AscHERS. Fl. Prov. Brandenb. 1 (1864) p. 830. The ligules are broad, short, from 1 to 2 

 mm. long, rounded at the top, slightly indented or tattered, the margin never hairy. The 

 leaves 18 to 20 cm. long, and comparatively very broad, 8 to 10 mm., tapering and point- 

 ed towards the summit, the margin completely smooth or slightly scabrous, and some- 

 times with some long, fine, scattered hairs on the upper side. The under side is always 

 smooth. The panicle is 10 to 12 cm. long, and 3 to 4 cm. broad, brownish green, erect. 

 The branches long, tender, frequently somewhat relaxed, smooth, sometimes rough to 



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