—— 
KEY TO SUB-CLASSES, ORDERS AND GENERA, 178 
LXXXIII--ACANTHACE Ai—cont. 
(8) Stamens 2; corolla with long slender tube, almost salver- 
shaped :-— 
(*) Bracts usually large (rarely small) and much exceeding the 
calyx ; corolla lobes obovate, and twisted to the left in 
bud ; flowers blue or rosy, in linear spikes, more rarely 
dense and capitate :=— ... ius ... deci—Dedalacanthus. 
(**) Bracts and bracteoles linear, small ; corolla lobes imbricate 
in bud; flowers white, pink, red, lilac, purple, or plue, 
often spotted with purple or brown, in spikes or racemes, 
lax or dense, simple or compound ; leaves often diversely 
variegated in the cultivated species:—— .... decx—Hranthemum. 
(B) Corolla distinctly 2-lipped :— 
(a) Stamens 4 didynamous, anthers 1-celled; flowers red or scarlet 
in 4-sided spikes; corolla lower lip with central lobe much 
larger than lateral; bracts somewhat membranous :—— 
dcecix—A phelandra, 
(b) Stamens 4 didynamous, anthers 2-celled; flowers large purple, 
in hairy terminal spikes; corolla posterior lip shortly bifid, 
anterior of 3 short emarginate lobes; bracts prominent, 
elliptic :-- ~ ms oe ey sh ... decivy-—Calacanthus. 
(c) Stamens 2 :-— 
(x) Anther cells placed 1 higher than the other :— 
(*) Anther cells, at least the lower, with a white basal spur-like 
appendage :—— 
(+) Style shortly bifid; corolla tube short, hardly longer (or 
shorter) than the limb; flowers usually white or pink 
with purple spots, in spikes or panicles:—- _— dexii-—Justicia. 
(tt) Style simple, but stigma sometimes bilobed or bila- 
mellate; corolla tube long; flowers mostly scarlet, 
sometimes fiesh-pink, in terminal thyrses or spikes :— 
deexiii—Jacobinia. 
(**) Anther cells not spurred :— 
(+) Corolla tube short, upper lip not acuminate ; flowers white 
spotted with rose, or creamy, in terminal spikes, often 
several together, or capitate :—— ... decxiv—Adhatoda, 
(tt) Corolla tube long, upper lip acuminate but sometimes 
also bifid at tip; flowers white, in terminal panicles :— 
decxy—-Rhinacanthus 
(8) Anther cells parallel on the same level :-- 
(*) Corolla salver-shaped, tube long filiform, upper lip narrow 
and shortly bifid, lower 3-lobes pendent ; flowers blue in 
dense somewhat 4-sided terminal spikes; bracts large, 
imbricate, somewhat 4-ranked :— ... decexvi-—Kcbolium. 
(**) Corolla cylindric and curved, tube long but not filiform, 
limb small in comparison, upper lip arched, lower 3-fid ; 
flowers crimson or purple, in terminal racemes; bracts 
and bracteoles very small; leaves variegated :-— 
, decxvii—Graptophyllum. 
LXXXIV—MYOPORACE Ai— 
(1) Characters of the order (q.v., in the Synopsis); shrubs; flowers small, 
white, in axillary clusters; corolla bearded :— a be decxix—Myoporum, 
LXXXV—VERBENACEA— 
[Anatomical featwres,—As far as known, the Indian climbing species, except Congea, 
have normally built wood with large vessels. The stem of Avicennia has an entirely 
abnormal structure. | 
[Botanical note.—According to Hooker and others Stachytarpheta indica is a “herb 
about 1—2 feet high”; it is a common woody shrub 3—8 feet high usually densely 
branched low down, but sometimes with more of a bole 3—4 inches in diameter. There 
seem to be four distinct varieties of Avicennia officinalis: (1) (typica) ; leaves oblong 
obtuse i” — 2)” x 3” — 1”, nerves 6 pairs, not very regular, spreading, then arching and 
