20 
thick corky pericarp, which also contains 5 small bundles of 
strengthening cells. Seed-section oval or much flattened. 
* * * * AcauleBcent or nearly so, with solitary or numerous oil-tubes, 
no sty lop odium, filiform dorsal and intermediate ribs (prominent or even 
slightly winged in some species of Coloptera and in Pseudocymopterus) 
v' '■ ; i 
and variously colored flowers. 
14. Coloptera. Calyx-teeth obsolete or evident. Fruit 
ovate, glabrous. Carpel with dorsal and intermediate ribs filiform 
or winged and approximate; lateral wings broad, very thick and 
corky, with neither nerves nor strengthening cells, coherent till 
maturity with those of the other carpel, forming a broad corky 
margin to the fruit usually thicker than the fruit proper, and in 
cross-section showing a neck-like connection. Oil-tubes very 
small, 4 to 8 in the intervals, 8 to 14 on the commissural side. 
Seed very flat, with plane or slightly concave face. Dwarf j^lants, 
with small simply pinnate (bipinnate in one species) or lobed leaves. 
15. Leptotsenia. Calyx-teeth obsolete or evident. Fruit 
oblong-elliptical, glabrous. Carpel as in Qolo^tera^ except that 
the thick corky lateral wings have large groups of thick- walled 
strengthening cells, and the dorsal and intermediates are always 
filiform or obscure; commissural face with a prominent central 
longitudinal ridge left after separation from thO carpophore. Oil- 
tubes 3 to 6 in the intervals, 4 to 6 on the commissural side, 
mostly small, sometimes obsolete. Seed very flat, with plane or 
slightly concave face. Tall and stout, with large pinnately de- 
compound leaves. 
16. Peucedanum. Calyx-teeth obsolete or evident (rarely 
much enlarged); Fruit oblong to suborbicular, glabrous to tomen- 
tose. Carpel with dorsal and intermediate ribs filiform and ap- 
proximate; lateral wings broad and thin, coherent till maturity 
with those of the other carpel, forming a broad membranous wing 
to the fruit; commissural face without a prominent longitudinal 
ridge after separation from the carpophore; a group of strengthen- 
insT cells beneath each rib. Oil -tubes 1 to 8 in the intervals, 2 to 
10 on the commissural side. Seed flat, with plane or slightly con- 
cave face. ‘ ' 
17. Pseudocymopterus. Calyx-teeth evident. Fruit ovate 
or oblong. Carpel with dorsal and intermediate ribs very promi- 
