Danthonia) XXVIII, GRAMINES, 213 
3 to 3} lines long, awn 33 to 4 lines, geniculate below the middle 
with a flat much-twisted column ; pale as in the lowest flower ; 
fruit (unripe) narrowly elliptical, glabrous. 
Resembles some forms of the American D. spicata Roem & 
Schult, but is distinguished by its long stiff suberect leaves, 
relatively shorter barren glumes, etc. 
Punco ANDoNGo.—A very elegant grass, apparently flowering only 
very rarely, When dried the leaves completely lose their form and 
colour. Plentiful on the rocks of the presidium ; in fl. Nov. 1856. 
No. 2744. On the higher rocks of the presidium at Pedra Cazella, 
Pungo, and Cabondo ; in fl. May 1857. No. 7417. 
42. PENTASCHISTIS Stapf in Fl. Capens. vii. p. 314 (1898) ; 
Nees in Lindl. Nat. Syst. ed. ii. p. 382 (1836) as a subgenus. 
Danthonia DC., Benth. & Hook, f. Gen. Pl. iii. p. 1163, pro parte. 
1. P. Welwitschii Rendle sp. nov. 
A widely cespitose glabrous perennial with a slender fibrous 
rhizome ; culms slender, erect, springing from among the withered 
basal leaf-sheaths, which ultimately become fibrous ; leaves erect, 
linear, convolute, stiff, subpungent, sometimes overtopping the 
panicle ; ligule a very short ridge of whitish hairs; blade con- 
spicuously jointed to the slender cylindrical striate sheath which 
far exceeds the very thin terete internodes; panicle graceful, 
narrowly lanceolate, subnutant; branches slender, ascending, 
solitary ; spikelets terminal, or shortly stalked on the branchlets, 
small, lanceolate before spreading of the glumes; flowers 2, 9; 
barren glumes shorter than the flowers, membranous, 1-nerved, 
lanceolate, the lower acuminate, the upper slightly larger with 
an irregularly cut cuspidate apex; flowering glumes subequal, 
on a very short rhachis-joint, callus short, white-hairy ; glume 
yellowish, ovate, 3-nerved with 2 less prominent partial outer 
nerves, apex bearing a median awn, and on éach side a pair of 
weak slender setiform lobes; awn weak, geniculate just above 
the base; pale elliptical, back somewhat flattened, apex shortly 
weakly trifid, minutely hispidulous. 
Plants 1 to 2 ft. high; culms with 3 internodes, the upper- 
most only escaping from the leaf-sheath; leaves except the 
younger 8 to 10 in. long, slender and convolute, rarely exceeding 
+ line in breadth. Panicle 44 to 7 in. long, } to 1 in. broad, 
lower branches 14 to 2 in. ; pedicels about equal or a little longer 
or shorter than the spikelet, like the rhachis and branches 
glabrous; spikelet, without the awns, about 1} line long; lower 
barren gl. 1 line, the upper 14 line; flowering gl. 1 line, the 
inner sete 14 line long, the outer shorter; awn 23 lines, kneed 
3 line above the base; pale a little shorter than the glume, apex 
and upper part of nerves minutely hispidulous; ovary glabrous. 
A very distinct species approaching D. abyssinica Hochst., but 
distinguished by its lax inflorescence, smaller spikelet, sessile 
upper flower, 5-nerved flowering glume, etc. 
Punco Axnonco.—Widely ceespitose, 1 to 2 ft. high ; culms erect. 
