Barleria. | XCVIII. ACANTHACEH (CLARKE). 
linear beak ; ovary densely and minutely bairy ; 
capsule minutely hairy or nearly glabrate. 
Hairs simple, with some (especially on the leaf- 
margins) attached by their centre. 
Leaves sessile. 
Leaves oblong or linear-oblong . 
Leaves ovate-elliptic . . . . 
Leaves shortly petioled. 
Outer sepal truncate at the base 
Outer sepal distinctly cordate . 
Many glandular hairs . 
“*Eu-BARLERTA.—Ovary with 2 similar ovules (or the 
lower smaller) in each cell; capsule (not known to 
be rostrate) frequently perfecting 4 seeds, Hairs 
simple or stellate, none canescent and attached by 
their centre. (The capsule is not known in many 
Species below, and is sometimes 2-seeded, sometimes 
4-seeded. In a large number of species the lower 
ovule is smaller and the capsule probably 2-seeded. 
On the other hand, the whole B. repens group 
(nos. 67-72) appear to be normally 4-seeded, This 
variability is strongly against the admission of 
Somalia as a genus.) 
+Glabrate, — Mature leaves glabrate, or with small 
bristles on the nerves. Flowers and leaves usually 
Jarge or medium (smaller in B. cyanea and B. 
Lugardii). 
Species of Lower Guinea (chiefly Welwitschian from 
Angola), 
Flowers clustered towards the ends of the branches. 
Leaves ovate; anticous calyx-segment 1 in, long 
Leaves lanceolate; anticous calyx-segment # in. 
long, 
Anticous calyx-segment 2-lobed 
Anticous calyx-segment entire . 
Leaves spathulate-elliptic 
Lower flowers axillary. 
Leaves up to 54 by 2 in. 
Leaves 1 by 2 in. . . . 
Species of East and South T ropical Africa. 
Leaves subsessile, almost truncate at the base. 
Leaves oblong ; posticous sepal 14 in, long 
Leaves elliptic ; posticous sepal 1 in. long 
Leaves petioled, narrowed at the base. 
Corolla-tube 2 in, long 
Corolla-tube 3 in. long . . : 
Leaves scarcely petioled, narrowed at the base. 
Corolla exceeding 1 in. in length. 
Leaves 3 by 2 in., linear-lanceolate 
Leaves 2 by lin., elliptic. . 
Corolla scarcely 3 in. in total length 
MH Stellato-hirte.—Innovations (at least) stellately hairy. 
Flowers in ovoid dense heads. 
Outer floral leaves broadly ovate, much imbricated. 
B. 
B. 
. B. 
B. 
B. 
se BS 
by bo by 
. 35, B. argentea, 
. B. 
parviflora. 
. 37. B. Hochstetteri. 
. B. 
. B. 
orbicularis. 
glandulifera, 
. 40. B. polyneura, 
violascens. 
obtusisepala. 
Welwitschit, 
alata. 
cyanea. 
. calophylla. 
. calophylloides. 
. grandis. 
. Mackenii. 
marginata, 
ukamensts. 
, Lugardit. 
143 
