CIX. ACANTHACER. (C. B. Clarke.) 389 
Tribe 4. Acanthese. Coro//a-tube short; upper lip obsolete, lower 
3-lobed. Ovules 2 in each cell. Retinacula curved, hardened. 
Anterior filaments with an excurrent process . . . . 20. BLEPHARIS. 
Anterior filaments without an excurrent process . . . 21. ACANTHUS. 
Tribe 5. Justicieze. Corolla-lobes imbricatein bud. Retinacula curved, 
hardened. Anthers 2-1-celled; cells often spurred at the base, one fre- 
quently placed much above the other. Style shortly equally 2-fid or 
subentire. 
Subtribe 1. ANDRoGRAPHIDER. Ovules 3-10 in each cell Capsule 
normally 6- or more-seeded. 
* Capsule compressed at right angles to the septum; seeds ovoid, hardly 
compressed. 
Flowers panicled or thyrsoid 28. ANDROGRAPHIS, 
Flowers axillary, clustered, with cladodes (suppressed 
branchlets) among them . . . . . . - . . 29. HAPLANTHRUS. 
** Capsule subterete, seeds much compressed. 
Corolla-tube very slender, limb small. . . 30. GYMNOSTACHYUM. 
Corolla cylindric, curved, not ventricose nor deeply 
2-lipped . EE 31. PHLOGACANTHUS. 
Corolla ventricose, n not deeply 2- “lipped 2... s. s. 32. CYSTACANTHUS. 
Corolla deeply 2-lipped . . PM 33. DIOTACANTHUS. 
Subtribe 2. Bartermex. Ovules 2-1 in each cell. Corolla-lobes 5, sub- 
equal. Stamens 4, of which 2 are small or obsolete, or 4 1-celled. 
Sepals 4, 2 outer opposite larger. Anthers 2-celled . 22. BARLERIA. 
Calyx 2-lipped, 5-lobed. Anthers 2-celled . e. 3. NEURACANTHUS. 
Outer calyx-lobes much the larger. Anthers l-celled . 24. CROsSANDRA. 
Subtribe 3. Asysrasıræ. Ovules 2 in each cell. Corolla-lobes 5, sub- 
equal. Sepals 5, small, subequal. Stamens 4 or 2; anther-cells 2, subequal, 
parallel, muticous. 
Corolla-tube long, narrow or subventricose. 
Corolla-tube slender. Stamens 2 . 
Corolla-tube ventricose. Stamens 2 . 
Subtribe 4. Evsusticrez. Ovules 2 in each 
2-lipped. 
* Stamens 4, anthers all subequal 2-celled. 
Stamens 4 25. ASYSTASIA. 
. . 26. ERANTHEMUM. 
27. CODONACANTHUS. 
cell. Corolla distinctly 
34. LEPIDAGATHIS. 
Calyx deeply 5- or 4-lobed . . . «c 5 5 3S 
Calyx campanulate, 5-toothed . 2... s. . 35, PHIALACANTHUS, 
** Stamens 2, anthers 1-celled. 
. . . . . 86, MoNOTHECIUM. 
Bracts small, narrow. Corolla small. . o. MOM ER UR. 
Bracts small, narrow. Corolla long . . - + + + - 
Bracts larger than the calyx-segments . . . . 49. HyPGSTES. 
*** Stamens 2, anthers 2-celled. 
+ Placenta rising elastically from the base of the capsule. 
IA. 
Bracts in l.sided spikes . . Dot : : : ` i 2 DI rxhi. 
Bracts clustered, shortly peduncled . 
