194 XXVIII. GRAMINES, [ Leucophrys 
glume large, lanceolate, papery, subglabrous, longer than, rarely 
subequal to, the second; gl. II. separated from gl. I. by a short 
thick joint, lanceolate-acuminate, membranous,bearing a line of 
stiff erect whitish hairs below the middle, becoming papery above 
the line of hairs; gl. ITI. similar to but a little shorter and 
broader than the second, sheltering a subequal flattened pale with 
a & flower (3-androus) ; gl. IV. about half as long as the barren 
glumes, oval, convex, corlaceous, polished, with a subequal pale 
anda & flower. Panicle narrow, spikelets densely arranged on 
the short sometimes subdistant lateral branches of a stiff rhachis ; 
pedicel jointed a short distance below the lowest glume. Apparently 
a psammophilous plant, with rigid glaucous spreading nodose 
branches and short subfleshy involute pointed leaves. 
Distinguished from Panicum by its large papery outer glume, 
often exceeding the second. Resembles Z7icholena in the presence 
of the callus below the second glume and the transverse demarcation 
of the inner barren glumes by a line of hairs, but is distinguished 
by the size of the outer glume which is the most important in the 
spikelet, and not asin Tricholena, a mere rudiment, The difference 
between the genera resembles that between Digitaria and 
Panicum, but is in a much greater degree. 
Hab.—Subtropical south-west Africa (Namaqualand and 
Mossamedes). Species one. 
1. L. mesocoma, 
Panicum mesocomum Nees Fl. Austr, Afr. p. 34 (1841); 
Steud. Syn. Pl. Gram. p. 88 (1854); Durand & Schinz, Consp. 
Fl. Afr. v. p. 754. 
MossaMEpEs.—A_ perennial grass, stem branched from the base, 
branches widely spreading at an obtuse angle, very rigid and brittle, 
glaucous ; leaves resembling those of a Dianthus, subfleshy glaucous, 
faleately recurved. In gravelly soil by the banks of the river Bero; 
end of June 1859. No. 2295. 
30, TRICHOLZENA Schrad. ex Room. & Schult. Mant. ii. p. 
163 (1824). 
Panicwm L., Benth. & Hook. f. Gen. Pl. iii. p. 1103, pro parte. 
1. T. rosea Nees Fl. Afr. Austr. p. 17 (1841); Durand & 
Schinz, Consp. Fl. Afr. v. p. 770. 
Panicum rosewm Steud. Syn. Pl. Gram. i. p. 92 (1854). 
HuvILia.—A cespitose grass 2 ft. high, with erect stems, very 
narrowly linear leaves, and shining-silvery spikelets. In damp 
pastures close to streams near Humpata; end of Nov.1859. No. 7517. 
In poorer meadows near Lopollo; Jan. 1860. No. 2649. In rather 
dry thickets between Catumba and Nene ; April 1860, No, 2663. In 
wooded places near Lake Ivantala ; Feb. 1860. No. 2666. 
2. T. grandiflora Hochst. in Flora xxiv. Intell. i. p. 19 (1841) 
(nomen) ; A. Rich. Tent. Fl. Abyss. ii. p. 445 (1851); Durand & 
Schinz, /.c., p. 769. 
L. fragilis A. By. in Flora xxiv. p. 275; Durand & Schinz, 
