﻿Eustachvs in North America 437 



more curved than the midnerve, which is almost straight, the lat- 

 eral nerves but little more curved than the midnerve, 1.75-2 mm. 

 long, in side view about . 5 mm. wide, acute at the apex, the awn 

 inserted just below the apex, 2.5-4 mm. long; fifth scale, when 

 present, less than 1 mm. long with an awn shorter than itself. 



Texas. Resembles in general appearance and in its outer 

 empty scales C. verticillata y but its narrower leaves, very slender 

 spikes, and the acutish and not truncate fourth scale readily distin- 

 guish it The fourth scale occasionally bearing a flower and ma- 

 turing seed is a character not noted in any other species. It is at 

 once known from C. Nealleyi by the smaller third scale with its 

 pilose midnerve. 



The type material was collected by Mr. G. C. Nealley in 1889. 

 It was also secured by him the following year. Mr. S. B. Buck- 



June 



J 



3- Chloris verticillata Nutt. Trans. Am. Phil. Soc. II. 5 : 



150. 1833-37- 



Culms 2-5 dm. tall, compressed, at first erect, at length de- 

 cumbent at the base and rooting at the lower nodes, simple or 

 somewhat branched ; nodes of the erect part of the culm 1-4: 

 leaves 1 -several ; sheaths compressed, keeled, overlapping, a few 

 ] °ng hairs on each side at the apex, the uppermost one much elon- 

 gated ; ligule a scarious ciliolate ring about .5 mm. wide ; blades 

 I-5—1 8 cm., usually less than 8 cm., long, 2-4 dm. broad, smooth 

 beneath, rough above and on the margins, linear, obtuse : inflor- 

 escence at length exserted, the axis .5-5 cm., usually 2-3 cm., long, 

 an gled, the angles hispidulous ; spikes 8-21, commonly exceed- 

 ing 12, 5—1 5 cm. long, generally more than 10 cm., pilose at the 

 . ase which is usually naked or with a few scattered spikelets, at 

 en gth widely spreading, arranged in 1-4 whorls, or the upper ones 

 scattered or approximate, the rachis hispidulous on the back : spike- 

 ets, exclusive of the awns, about 3 mm. long : scales 4, with rarely 

 le m inute rudiment of a fifth scale ; outer empty scales acumi- 

 na te, awn-pointed, the first scale from two thirds to three fourths 

 a s long as the second which is about 3 mm. long ; third scale pi- 

 °se on the callus, 2.5-2.75 mm. long, in side view nearly equi- 

 ater al and .8 mm. wide, the lateral nerves pilose their entire length 

 Jwn short hairs, the midnerve as far as the awn, which is inserted 

 fh St k e * ow the apex and is 5-8 mm. long, the palet as long as 

 le sca le ; fourth scale 1.5-2 mm. long, in side view obovate- 



