764 ADDENDA AND CORRIGENDA. 
from 4—1 their length above the base, filiform, flexuous, scaberulous 
to seabrid, the longest 3 in. long or ‘longer ; ‘lateral pedicels about 
spikelets with a minute rudimentary valve at the upper end; 
glumes lanceolate, acuminate, herbaceous-membranous except at the 
ine margins, lower much narrower, 1l-nerved, 2-23 lin. long, 
upper 3-nerved, 23-3 lin. long; valve lanceolate in profile, oblong 
(when expanded), passing into the awn, 3-4 lin. long, herbaceous- 
membranous except along the narrow hyaline margins, middle 
nerve stout and prominent towards the tip; awn 7-8 lin. long ; 
anthers 2-2: lin. long. Brachyelytrum africanum, Hack. in Bull. 
Herb. Boiss. iii. 382. 
KataHARI ReGion: Transvaal; Houtbosch, Rehmann, 5732! 
Very closely allied to P. silvatious, K. in oe PA. Ost-Afr. C. 108, 
which has broader, less acute glumes ‘and er oat awns 
XCVIa4. SECALE, Linn. 
Spikelets laterally compressed, sessile, distichously imbricate in a 
dense cylindric spike ; axis of the spike readily disarticulating except 
in cultivated ‘hone compressed, each joint of the axis falling with 
the spikelet entire ; rhachilla continued into a short bristle above ae 
base of the upper floret, otherwise scarcely perceptible. Florets 2, 
$, more or less exserted from the glumes. Glumes equal or slightly 
unequal, very narrow, linear- subulate, strongly compressed 
keeled. Valivs oblong, lanceolate in profile, strongly compressed, 
passing into a straight awn, firmly membranous, 5-nerved, keeled ; 
callus 0. Pales 2-keeled, 2-toothed, almost as long as the valves, 
narrow. Lodicules 2, hyaline, ciliate. Stamens 3. Ovary obovoid, 
top densely tomentose ; styles distinct, very short ; stigmas Prarie 
laterally exserted. Grain oblong, ‘subte rete, grooved n front, 
enclosed by the valve and pale, free or almost SO ; pase about 
x the length of the grain 
bes or annual; blades flat, flaccid; ligules membranous; spikes very 
es 4; 2in the Mediterranean countries —- in ees Eastern Hurope and 
thane 1 in South Africa, 1 only known as ac 
1B. reg sce (Stapf in Hook. Icon. Pl. t. 2601) ; culms slender, 
over + ft. long, glabrous, smooth, upper internodes exserted ; uppeT 
leaves fet. smooth ; sheaths ie ligules very short, obtuse ; 
blades linear, narrow, up . long; spike linear, very dense, 
23-3 in. by 23-3 lin. ; ett e? fragile, edges of joints densely villous ; 
spikelets 5-6 lin. long (exclusive of the _ —_ imbricate ; ; 
glumes linear, gradually narrowed to a fine point roduced into a 
very short bristle, upper about as tos as the Cites: lower usually 
somewhat shorter, keels finely scabrid ; valves lanceolate-oblong, 
produced into a fine scabrid straight awn, 3-3 lin. long, seabrid on 
De Se ee a ee eee Pees ee, eee 
