Panicum] XXVIII. GRAMINEA, 175 
lax, older ones purplish; ligule membranous, truncate; the 
single cauline leaf has a narrow closely appressed sheath about 
equal to the blade which reaches the base of the cylindrical spike ; 
spikelets small, in a densely crowded panicle, ovate or ovate- 
lanceolate, acute ; glume I. + of gl. IIL., broadly ovate, blunt with 
sheathing membranous edges and 3 well-marked purple veins ; 
gl. IT. longer than gl. ITY., oval with an abruptly acute apex 
and 5 broad purple veins; gl. III. very broadly oval, acute, 
5-veined, enclosing a small barren pale; fertile glume about 1 
gl. IL, oval, smooth. 
Leaves 1} to 2} in. long, blade not exceeding 1 line broad, 
tapering to a point ; inflorescence 10 to 15 lines long ; spikelets 
= line long. Glume TI. } line long, gl. II. 3 line, gl. ITI. 2 line, 
fertile gl. less than 1+ line. 
Has somewhat the appearance of a small form of P. myosuroides, 
but is distinguished by the large first glume of the spikelet and 
the acute second and third glumes. 
HviLta.—Poor damp pastures in the Humpata district ; April 1860. 
No. 2699. 
25. P. catumbense Rendle sp. nov. 
Shoots slender, erect, annual (9 to 12 in.), rising from a 
perennial woody rhizome from the lower side of which spring 
numerous wiry roots; basal leaves short, membranous, sheathing ; 
upper ascending, sheaths narrow, terete, closely striate, sparsely 
pilose, ligule very short, truncate, pilose, blade very narrowly 
linear-lanceolate, acuminate ; inflorescence short (1} in.), dense, 
interrupted, strict, linear or linear-oblong; spikelets laterally 
compressed, ovate-lanceolate to oval, glabrous, 2 lines long; gl. I. 
ovate, acute, 7-nerved, + length of spikelet; gls. TI. and III. equal, 
strongly nerved, 2 lines long, the second cymbiform, acuminate, 
the third convex, ovate, acute, subtending a short narrow pale and a 
6 flower ; fertile gl. 3 length of two lower ones, broadly ovate, acute. 
The short woody nodulose rhizome 1 to 2 lines thick, bears a 
few crowded young shoots and the charred bases of older ones. 
Leaf-sheaths closely enveloping and generally exceeding the very 
slender internodes, 2 to 4 in. long; nodes glabrous. Leaf-blades 
almost erect, 11 to 22 in. long, « little more or a little less than 
1 line broad, sparsely pilose on the upper face, the midrib and 
sometimes the lateral veins, protruding on the lower. Glume I. 
convex, 14 line long, 2 outermost nerves short; gl. IJ. when 
flattened ovate from a broad truncate base, 9-nerved, barely 2 lines 
long, gl. III. similar but slightly broader, pale, slender, thin, 
lanceolate, 1 line long, anthers of flower 3 line long. Fertile gl. 
subcoriaceous, inconspicuously 3-nerved, 14 line long, pale of equal 
length, anthers of $ flower 11 line long (ovary still very small). 
Approaches some large-flowered forms of P. indicum, but easily 
distinguished by its habit, interrupted spike, and acute glumes. 
Huritia.—Pastures with short overgrowth near Catumba; end of 
March 1860. No. 2689. 
