2 ACANTHACHA (Clarke). 
Subtribe 2. Eu-Rvg1tiinm®. Ovules 3 or more in each cell. Capsule usually 
with more than 4 seeds. Corolla not, or obscurely, 2-lipped. 
III. Ruellia.— Pollen globose, honeycombed. Capsule with seeds in the upper 
part, cylindric and solid at the base. ; 
IV. Ruelliopsis.— Polen ellipsoid, longitudinally grooved. Capsule seed-bearing 
nearly from the base. Anther-cells tailed at the base. 
Subtribe 3. SrRoBILANTHES. Ovules 2 in each-cell. Capsule with 4 (or 
fewer) seeds, 
* Placente not rising elastically from the base of the capsule. 
V. Dyschoriste.—Stamens 4, perfect. 
VI. Chetacanthus.—Stamens 2, with or without minute rudiments of others. 
** Placente rising elastically from the base of the capsule with the ripe seeds. 
VII. Phaylopsis.—Floral leaf containing 3-1 ebracteolate flowers. 
VIII. Petalidium.—Hach flower with 2 large ovate or elliptic bracteoles, 
Tribe 3, ACANTHEZ. Corolla 1-lipped; tube short. Stamens 4; anthers 
1-celled ; pollen ellipsoid, longitudinally banded. Ovules 2 (or 1) in each cell. 
* Calyx 4-partite to the base (i.e. the 2 anticous segments connate to the tip or 
very nearly so). Corolla wanting the posticous lip. 
IX. Blepharis.—Bract large, acute, often ending in aspine. The two anticous 
filaments with a short process near the top. Ovary with 2 pits at the apex of 
the posticous face. Seeds with hygroscopic hairs. 
X. Acanthopsis.—Bract large, obovate, ending in 5-3 compound spines, Fila- 
ments without processes. Ovary without pits at the apex of the posticous face. 
Seeds with hygroscopic hairs. 
XI. Acanthus.— Filaments without processes, Ovary without pits at the apex of 
tke posticous face. Seeds without hygroscopic hairs, 
** Calyw 5-partite to the base. Corolla-limb split down the posticous face, so 
that the lip has 5 lobes all on one side. 
XII. Selerochiton.— Sepals all similar ; posticous 1-nerved. 
XIII. Crossandra.—Posticous sepal broader than the others, 2-nerved, often 
2-toothed at the tip. 
Tribe 4. JUSTICIEA). 
lobe wholly. within, 
(except in Crabbea), 
Subtribe 1. Terranpra. Stamens 4, all fertile, 
XIV. Crabbea.—Flowers in dense compound heads. Ovules 8 in each cell. 
XV. Glossochilus.— Flowers s 
olitary. Leaves narrowly cuneate-oblon labrate, 
Ovules 2 in each cell. Capsule hardly stalked. . radios 
XVI. Asystasia.— Flow 
ere in racemes, spikes or heads. Ovules 2 i ‘ 
Capsule long-stalked. i ries ee ae 
Subtribe 2. ERANTHEMEZ. Stamens 2 fertile. 
XVII. Mackaya.—Corolla curved ; tube much inflated in the upper half, 
Subtribe 3. BaRteniex, Stamens 2 fertile. Calyx large, 4-parti hi 
base, i.e, two anticous lobes connate nearly or qui t ipemdenspeaves: 
te to the tip. 
XVIII. Barleria.— Pollen globose, reticulated. 
Subtribe 4. Eu-Justicie 
Corolla-limb subequally 5-lobed or 2- 
L lipped, one 
one wholly without, in the bud. Ovules 2-1 
in each cell 
Corolla hardly 2-lipped. 
scopic hairs, 
* MONOTHECIER. Anthers l-celled. Placente not rising elastically with the 
seeds from the base of the capsule, 
XIX. Ruttya.—Corolla-tube wide 3 Segments 5, ovate, in two lips. 
