LVI. UMBELLIFER.E. 335 
inferior, 2-celled or very rarely 1-celled by abortion, with 1 anatropous ovule 
i the summit. Styles 2, with small terminal 
lateral one on each side, but some of these are occasionally inconspicuous, and 
n some genera 4 secondary ribs to each carpel, between the primary ones, are 
as conspicuous or more prominent than the primary ones. In many genera 
there are longitudinal linear oil-vessels called vitte, within or under the peri- 
carp. Seed often adhering to the pericarp; testa very thin; albumen horny, 
filing the seed or furrowed or excavated on the inner face (next the commis- 
sure). Embryo minute near the apex of the seed, with the radicle superior. 
—Herbs or very rarely shrubs, with alternate leaves, often much cut or 
divided, the petiole usually dilated into a sheathing base, but without E 
rmi 
stipules, except in Hydrocot le. Flowers usually small, in term or 
„umbel termed the involucel or partial involucre, or one or both involucres 
Wanting, Flowers frequently more or less polygamous, some, in the same or ` 
different umbels from the perfect ones, being males by the constant abortion 
vary, and occasionally one or a few in the centre of the umbel females 
amens, 
e numerous Order, more or less represented nearly all over the globe, especially in the 
Perate region of the northern hemisphere, where the delimitation of the very numerous 
i The Australian genera are much more marked, 
i i rthern 
pres 
7 three on] ones. e 
g rather uncertain in their connection with no 
era here enumerated four have a very wide range withi well as without the tro- 
both hemispheres, one, Seseli, is more specially characteristic of the Caen 
VT d the Ola W ld, three range over Andine and Antarctic America d 3s 
Trae one, Aciphyllum, extends to New Zealand and the Antarctic islands only, another, 
ic Benz, extends on] New Caledonia and Borne 
Si laterally Compressed, without vittze. Seeds laterally compressed. 
mbels simple. * 
Ping perennials or slender annuals with scarious stipules. . 1. HYDROCOTYLE; 
Annuals or ; 
i stipules. Fruit ve geb Bt E UN 
, Leafless plant with rush-like stems . ^. ... . - eid 3. SIEBE 
| compound, sometimes reduced to 1 or 2 flowers with b 
h under the flower as well as under the pedicel. 
alyx-teeth small or inconspicuous. Perennials or shrubs, usually 
perennials, with dissected or toothed leaves without 
it very fl San diet 
