224 
LVI. VERBENACEJE. 
2. TEUCRIDIUM, Hook. f. 
Shrubs, with slender 4-angled branches. Leaves small, simple. Flowers 
axillary, solitary. — Calyx campanulate, 5-toothed, persistent. Corolla cain- 
panulate, 2-lipped ; upper lip of 4 short lobes, lower longer. Stamens long, 
exserted, arching downwards ; anthers 1-celled. Ovary 4-lobed, 2-celled ; 
cells incompletely divided again; style 2-fid; ovules 4, pendulous. Fruit 
sunk in the calyx, small, 4-lobed, hispid, splitting into 4 nuts. Testa thin. 
Cotyledons large, ovate ; inferior radicle short. 
A genus of two species, one found in subtropical Australia (T. sphcerocarpum , MuelL), the 
other the following. The lobed ovary is anomalous in the Order, and shows a tendency 
towards Labiata, but the reversed position of the flower at once distinguishes this. 
1. T. parvifolium, Hook./. FI. N. z. i. 208. t. 49. A much-branched 
slender, twiggy shrub, 2-5 ft. high, forming thickets, dichotomously branched, 
more or less pubescent. Leaves orbicular, broadly ovate or spathulate, jr in. 
long, with petioles i— | in. long. Peduncles short, 2-bracteolate. Calyx-teeth 
acute. Corolla hairy, blue, in. long. 
Northern Island: Wairarapa valley, Colenso. Middle Island: Nelson, Bidwill, 
Travers ; Akaroa, Raoul ; Canterbury plains, Travers. 
8. AVICENNIA, Linn. 
Evergreen, littoral trees, hoary with down; roots branching over the mud. 
Leaves opposite, quite entire. Peduncles short, axillary, 3-chotomous. 
Flowers sessile, surrounded by bracts. — Calyx equal, 4- or 5-partite. Corolla 
small, coriaceous, campanulate; limb 4- or 5-fid; lobes equal or posterior 
larger, nearly valvate. Stamens 4, filaments short ; anthers 2-celled. Ovary 
ovoid or conical, silky, 2-celled; style short or 0, stigmas 2 short erect, 
finally diverging ; ovules 2, collateral, pendulous in each cell. Fruit obliquely 
ovoid, compressed, coriaceous, 1-celled, 1 -seeded. Seed consisting of an 
immense embryo, with scanty albumen and imperceptible testa ; cotyledons 
cordate, very broad ; radicle long, thick, woolly, descending from the fruit 
before it falls. 
A small genus of littoral, tropical, and subtropical trees, abounding in brackish, muddy 
creeks and estuaries. 
1. A. officinalis, Linn. — A. tomentosa , Jacq. ; — FI. N. Z. i. 214. A 
small tree. Branches spreading. Leaves petioled, 2-3 in. long, ovate or 
oblong, obtuse, coriaceous, turning black when dry. Flowers silky, | in. long, 
in short, 3-chotomous, capitate panicles ; bracts 3, ovate, silky. Style 0, 
or short. — A. resinifera, Forst. Prodr. 
Northern Island : from the Thames river northward. Chatham Island, Dieffenbach. 
Forster erroneously supposed that this plant yielded an edible (?) gum, whence his name 
A. resinifera : it is abundant in Australia and throughout Asia, and very nearly related to 
the American species, if not a form of it. 
4. MYOPORUM, Banks and Solander. 
Shrubs, glabrous; branches sometimes viscid at the tips. Leaves alternate, 
quite entire or serrate, studded with pellucid glands. Flowers axillary, soli- 
