Hydrolea. 
LXXX11I. HYJ)ROPHYLLACEyE. 
1085 
acute, contracted into a short petiole, from under lin. to about 2in. long. 
Flowers larger than in H. zeylanica, in compact leafy cymes terminating the 
stems and upper branchlets. Calyx-segments narrow-lanceolate, acuminate, 
above 3 lines long. Corolla exceeding the calyx, divided to about the middle 
into broad lobes. Stamens and styles rather long; anthers lobed at both ends. 
Ovary, capsule, and seeds of //. zeylanira. — Bot. Reg. t. 56G. 
Hab.: Cape York, Darnel. 
Very abundant in tropical America. 
Order LXXX1Y. BORAGINEJE. 
Flowers regular or nearly so. Calyx free, of 5 rarely 4 or 6 or more divisions 
or teeth or rarely irregularly split. Corolla with a long or short tube, and 
5 rarely 4 or 6 or more lobes, imbricate or induplicate in the bud. Stamens 
as many as corolla-lobes or very rarely fewer, inserted in the corolla-tube 
and alternate with its lobes ; anthers 2-celled, the cells opening in longitudinal 
slits or rarely in terminal pores. Ovary superior, entire or 4-lobed rarely 
2-lobed, either 4 or 2-celled with 1 ovule in each cell or 2-celled with 2 ovules 
in each cell (in all cases formed of 2 carpels) ; style terminal or inserted between 
the lobes; ovules laterally attached, ascending or pendulous. Fruit either a 
drupe with the endocarp entire or separating into 2 carpels or 4 pyrenes, or 
dry and separating into 4 rarely 2 nuts. Seed with a thin testa; albumen 
none or scanty ; embryo straight ; cotyledons flat and rather thick or rarely 
folded ; radicle short. — Herbs, usually rough with coarse hairs, or in the 
drupaceous genera sometimes trees or shrubs with a softer indumentum or 
glabrous. Leaves alternate or very rarely opposite, usually undivided, entire 
or toothed, very rarely deeply lobed. Flowers in one-sided spikes or racemes, 
rolled back when young and often forked or dichotomous or rarely in irregularly- 
branched panicles or solitary. Bracts often not immediately subtending the 
pedicels and sometimes entirely wanting ; bracteoles very rarely present. 
A considerable Order, the herbaceous genera chiefly spread over the northern hemisphere 
with a very few tropical or southern species ; the frutescent drupaceous genera chiefly tropical 
in the New as well as the Old World. 
Tribe I. Cordieae. — Tree* or shrub s. Style terminal on the entire ovary, twice bipartite. 
Drupe A — 1 -seeded ; albumen none : cotyledons plicate longitudinally . 
Calyx-teeth very short, irregular 1. Coddia. 
Tribe II. Ehretieas . — Style terminal on the entire ovary, simplt . bipartite or styles 2. 
Drupe with 2 2 -celled or 4 1 -celled pyrenes, or of 1 — 1 nuts. 
Trees or shrubs. Style 2-fid .2. Eiirktia. 
Prostrate herbs. Styles 2 . . 3. Coi.dbnia. 
Style simple, filiform. Fruit separable into 2 2-celled carpels. Anther- 
points straight 4. Halgania. 
Tribe III. Heliotropieae . — Style terminal on the entire ovary, depressed-conic at the 
apex, or with a horizontal ring below the stigmas. Fruit as of Eh retieae. 
Shrubs, often scandent. Style short, shortly 2-lobed 5. Tournefortia. 
Herbs. Style dilated at tbe apex or above the base 6. Hei.iotropjiim. 
Tribe IV. Boragfea?. — Herbs. Style simple or bitid, rising from between the ovary-lobes 
t except in Triehodesma). Nuts 4, rarely 3 — 1 by suppression. Albumen none. 
Subtribe I. Cynog losses . — Nuts attached to a convex or conical carpophore, scar 
continued to the apex of the nuts which are often depressed, produced, or saccate at the base. 
* Fruiting -calyx enlarged, enclosing the tints. 
Anthers conically eonnivent, lanceolate, subexserted 7. Triohomcsma. 
**Nuts depressed, their bases produced downwards. 
Stamens included. Nuts obovoid, glochidiate 8. Cvnoueossuii. 
’ "Nuts connate, forming a pyramidal fruit, margined, hardly produced downwards. 
Racemes bracteate. Margins of the nuts glochidiate. scarcely veflexed . f). Echinospekjutm. 
