Pennisetum | XXVIII, GRAMINELE, 189: 
3. P. angolense Rendle sp. nov. 
Very tall, with unbranched erect culms and long tapering more 
or less erect involute leaves; spikes long, cylindrical, whitish ; 
spikelets curved, lanceolate, membranous, densely packed, the 
spreading setz of the involucre becoming reversed; glume J. minute, 
orbicular-ovate ; gl. II. half the length of the spikelet, ovate, 
3-nerved, the prominent midrib produced into a short awn; gl. III. 
ovate-lanceolate, 5-nerved, subtending a subequal flat pale with a 
& flower ; fertile gl. slightly longer, ovate, acute, 5-nerved, with 
membranous incurved edges and a similar slightly narrower pale. 
A tall reedy grass, the shoots reaching 5 to 12 ft. high. Inter- 
nodes smooth, terete ; nodes glabrous ; sheaths loose, membranous, 
striate, exceeding the long internodes, hairy at the mouth ; ligule 
a line of stiff dense whitish hairs about 1 line long ; lamina 10 to- 
22 in., linear-tapering, with the margins rolled inwards, and 
a long aristiform apex; spikes 71 to 114 in. on the specimens ; 
according to Welwitsch’s note often exceeding a foot; sete of 
involucre rather stiff, 1 to 3 in. long, with ascending barbs. 
Spikelets 2 or scarcely 2 lines long; glume I. enerved, hyaline, 
¢ to scarcely 1 line; gl. II. thinly membranous, with a prominent 
midrib and 2 inconspicuous lateral veins running 3 to + the 
length from the base, } to 1 line including the awn; gl. III. 13 
line, sometimes with a sixth nerve passing 3 the way up from the 
base. Fertile gl. membrano-coriaceous, 13 line, including a 9 flower. 
Near P. hordeiforme Spreng., which it closely resembles in 
habit, but is distinguished by the smaller more membranous 
spikelets with the awned not rounded second barren glume. The 
involucral hairs are less stiff, and their ultimate spreading or 
reversed position gives the spike a different appearance. 
Puxco AnponGo.—A grass 5 to 8 or 10 ft. high, laxly cespitose, 
with erect culms; spikes whitish, growing in large patches in marshy 
clayey places between Condo and Bumba ; March 1857. No. 27238. 
A very tall grass, 8 to 12 ft., but always with unbranched straight 
culms ; spikes always over a foot, white, erect. Near Sobato Bumba,. 
thickly massed over wide areas in marshy places; 15 March 1857. 
No. 7426. 
Var. laxespicata Rendle var. nov. 
Differs from the type in its less crowded spike and smaller 
spikelets scarcely exceeding 13 lines long. 
Huitta.—Very plentiful in wooded places round deep marshes, 
near Ohay ; middle of May 1860. No. 7507. 
Sect. 2.—EUPENNISETUM. 
4, P. purpureum Schum. in Dansk. Vidensk. Selsk. 111. p.64 (1828). 
P. Benthami Steud., l.c., p. 105; Durand & Schinz, Zc, p. 777, 
P. macrostachyum Benth. in Hook. Niger FI. p. 563 (1849). 
Loanpa.—A gigantic and very beautiful grass, growing about deep 
marshes, rising to 4°5 to 5 metres high. Marshes near Represa do 
Sr. Perreira Van Hunen; thickly cespitose; July 1854. No. 73285.. 
