579 
Stenotaphrum .] clvii. graminejs (Stapf). 
Rhachis winged, wings alternately to the right and the left 
of the wavy midrib, herbaceous -membranous, pro- 
duced upwards into a broad acute tooth or lobe ; 
racemes appressed to the wings 2. S. dimidiatum. 
1. S. secimdatum, 0. Kuntze, Rev. Gen. PI. ii. 794 ( secundum by 
error). Perennial, of the same growth as S. dimidiatum, but rather 
coarser and more glaucous. Leaf-sheaths very much compressed and 
keeled, firm, pallid, quite glabrous or ciliate upwards ; ligule a fringe of 
very short hairs ; blades folded in vernation, then flat or with the 
margins inrolled, the lower often standing off at right angles, linear 
from a much constricted and rounded base, with obtuse or rounded 
tips, from less than 1 to 4 (rarely over 6) in. by 2-4 J lin., more or less 
rigid, glaucous, glabrous, scabrid on the margins towards the tip, 
otherwise smooth, midrib very slender, nerves very close and 
numerous, faint or obscure on the upper side. False spikes terminal 
and very often lateral (1 or 2) from the upper leaves, erect, stout, 
stiff or curved, 1-3 (rarely 4) in. long, borne on rather stout glabrous 
peduncles, the latter permanently enclosed in or shorl ly exserted from 
the uppermost sheath ; common axis linear, entire, stout and spongy, 
flat on the back with or without oblique transverse depressed lines 
marking off the internodes, chambered or often deeply hollowed out 
in front, 1J-3J lin. wide, and up to 1J lin. thick. Racemes sessile, 
3- (rarely more-) to 2-spiculate or reduced to a single spikelet with or 
without an empty rhachis appressed to its outer side, distant by less 
than their own length (except sometimes the lowest), completely sunk 
in the hollows of the rhachis or, if 3-spiculate, shortly exserted from 
it ; rhachis triquetrous, ending in an often sharp point, shorter than 
the uppermost spikelet, or equalling or exceeding it if 1-spiculate, 
angles smooth below, scabrid upwards ; pedicels reduced to a short 
stump. Spikelets if more than 1 laterally contiguous or subcon- 
tiguous, lanceolate-oblong to oblong, acute or subacuminate, about 
2J lin. long, pallid. Glumes very dissimilar ; lower a whitish nerve- 
less membranous to chartaceous ovate obtuse rounded or truncate 
scale, J-l lin. long, very finely rough ; upper glume convex or 
boat-shaped, obliquely lanceolate in profile, acute, as long as the 
spikelet or almost so, membranous, 7-nerved, quite glabrous. Lower 
floret : valve corresponding in outline and size to the spikelet as 
seen from the front, chartaceous to subcoriaceous, 7-9-nerved, 
flattened on the back, slightly rough upwards ; valvule slightly 
shorter than the valve. Upper floret Q, similar to the lower but 
more lanceolate and more acute ; valve and valvule chartaceous, 
smooth, the former 5-nerved. Anthers up to 1J lin. long. Stigma 
up to over 1-| lin. long. — Hitchcock & Chase in Contrib. U.S. Nat. 
Herb. xvii. 271, and xviii. 356. S. glabrum, Trin. Fund. 176 (excl. 
syn.), Gram. Pan. 60, Pan. Gen. 102, and in Mem. Acad. St. Peters. 
6 me ser. iii. 190 (partly) ; Nees in Linnsea, vii. 273 ; Steud. Syn. PL 
Glum. i. 118 (excl. the two last syn.) ; Stapf in Dyer, FI. Cap. vii. 
438. S. glabrum, a americanum, Doell in Mart. FI. Bras. ii. ii. 300, 
