Sect. i. Monotheciew.—Anthers 1-celled. The flower not 
appearing as though enclosed between 2 opposite bracts. 
Placente not rising elastically from the base of the 
XCVIIT. ACANTHACEE (BURKILL AND CLARKE), 
v 
ey 
~ 
capsule. 
| Corolla more than 1 in. long ; tube broad, cylindric . 39. Rurrya. 
| } Corolla small or slender. 
Corolla-tube cylindric . 40. Monoruectum., 
Corolla-tube very short . 41. OrEACANTHUS. 
| Corolla-tube linear, 3-1} iv. long 42, BracHysTEPHANLS. 
Sect. 
ii. = Typice. — Anthers 2-celled. The flower not 
f appearing as though enciosed between 2 opposite 
bracts, Placentze not rising elastically from the base 
of the capsule. 
| One anther cell below the other, distinctly tailed. 
| Capsule usually 4-seeded; seeds rough or tubercled 
(see 56. Rungia) 
Capsule 2-seeded ; seeds smooth, shining, rarely with 
minute scabrous or stiff hairs. 
One anther-cell somewhat below the other, at base 
rounded or mucronate (or hardly tailed in Adhatoda). 
Corolla large, or long. 
. JUSTICIA. 
. MonecHMa. 
Corolla-tube broad. Large-leaved shrubs . 45. ADHATODA. 
Corolia-tube long linear ; posticous lip small 46. RuInACANTHUS. 
» Corolla-tube short ; lips very long (see 57. Macro- 
, rungia) . 47, ANISOTES. 
Corolla slender. Panicle many- flowered, rather close. 
| floral leaves inconspicuous. Pollen globose, flattened, 
| with 2 stopples . 48. IsoGLossa. 
Floral leaves (at least in the type species) conspicuous. 
Pollen globose with 6 equatorial stopples . . 49, CHLAMYDOCARDIA. 
Anther-cells at equal height, rounded at the base. 
bracts or floral leaves broad. Capsule 2-seeded 
Bracts strobilate, with only 1 flower under each 50. Ecroiium. 
5) 
8 
Floral leaves axillary or shortly spicate with 3-1 
/ ebracteate flowers under each . . 
{ Bracts narrow or small. Capsule 4- seeded. 
Corolla large ; tube } in. long 
| Corolla slender ; tube } in. long 
[\ Sect. iii. 
fruit. 
two oblong 
tube). 
Anther-cells 2, 1 much above the other (see 58. Picliptera) 
Anthers 1-celled 
Solute. — Placente rising «elastically in fruit, 
Hypoestece, ” Piacente not rising elastically in 
‘Lhe flower appearing as though enclosed between 
opposite bracts (sometimes connate into a 
Sect. iv. 
separating from the capsule-valves at the base, and 
throwing out the seeds. Capsule ovoid, flattened ; 
| faces with firm raised margins. 
; Spikes strobilate with 1 flower under each broad bract. 
{ Corolla-lips not longer than tube. (Only differs from 
Justicia sect. Betonica, or Adhutoda, by the 
Pp | elastically rising placente . 
f Corolla-lips much longer than tube. (Only differs from 
\ Anisotes by the elastically rising placentz) 
Spikelets with 1 perfect flower enclosed by 2 upposite 
bracts. (Ouly differs from Peristrophe by the elasti- 
Of doubtful position . . . . 
cally rising placente) . . 58 
. 59. 
MEGALOCHLAMYS. 
52. GRAPTOPHYLLUM. 
56. 
- O7. 
* 
. SCHAUERIA. 
, PERISTROPHE, 
. HyPporstEs 
Runa. 
MaAcroRUNGIA. 
DIcLipTERA. 
Hiernia, 
