EUPHORBIACEAE 
Ultimate divisions of the inflorescence open, long- 
ran 
Ultimate divisions of the inflorescence compara- 
ively dense, Pacemedike clusters. 
Capsule, and ony pubesc cent. ; 
Stem, rrr and iue permanently and usually 
co oo Subescon 
Plant Sit 2 RE or wiry branches, not forming 
ae 
Foliage ünely hirsute. 
Leaves of the “branchlets much dd 2 size, 
ron ded: capsule with many long 
Leaves of the branchlets not much reduced in 
pees e, not cro owded: capsule with few short 
Foliage a ei nt. 
Plant 1 many very slender, usually filiform 
As n at forming dense mats appressed to the 
Branches strigillose : leaf-blades much longer than 
Branches oo hirsutulous: leaf-blades nearly or 
quite as wide as lon 
than 4 mm, Ione), pr wide as long or nearly so. 
Eon BUXIFOLIAE 
Stem, und and leaves 
Twigs and leaves Suecus. beni ch plant. 
Twiss and leaves not succ culent : pineland plants. 
Leaf-blades very broad: sparingly Decne: 
Leaf- Rr rather pus ten mn uch-branched and 
br 
Stem, branches, and leaves pubesce 
Single-stemmed woody plants, S nietos branched near 
the ba ES e: stem and leaves finely, usually sparingly 
canesce 
Leaf blades ' relatively smal (on the main stem less 
than 4 mm. long), as wide as long or nearly SO. 
p relatively Jarge (on the a stem over 
5 mm. long), twice as long as wi 
Many- Se euied ia cespitose plant: Siem and leaves 
villous-hirsute. 
HYSSOPIFOLIAE 
IV. 
a es in dense axillary cymes, the cymes rarely 
ran 
Involucres in loose cymes, rarely also with some ges the 
cymes much-branched. 
V. 'TRACYAN 
Stem usually branched at the base and e P branches 
and branchlets very leafy. 
VI. MACULATAE 
Glands of the involucre with inconspicuous appendages. 
Capsule pubescent along the angles. 
Capsule RE ent all over, but often mainly so, below 
Leaf) blades ein s long as wide or less. 
.Involuere not cleft on one side: seed sharply 4- 
se ae C faces with 3 or 4 prominent trans- 
rse ri 
Involuere deeply cleft on one side: seed bluntly 
ee ed, the faces minutely roughened or nearly 
Leaf- Biages thrice as long as wide. 
Glands of the oe at least two of diem with petal- 
like appendag 
Branches dense] and copiously floriferous, the involucres 
crowded: leaves of the flowering branches much re- 
duced in size, of a different shape from those of the 
stem, and usually acuminate 
Branches not densely or copiously flowered, the involucres 
not approximate: leaves of the flowering branches 
much reduced in e e, but not changed in shape, 
rounded at the apex. 
1. C. cordifolia, 
Ta. C. Nashii. 
8. 
9. 
10. 
11. 
C. brachypoda. 
. Mosieri. 
C. Garberi. 
C. Serpyllum. 
12. C. adhaerens. 
21. 
at Ze 
to 
DR 
28. 
. C. deltoidea. 
. CO. buxifolia. 
C. Porteriana. 
C. scoparia. 
C. adicioides. 
Q : 
keyensis. 
C. pinetorum. 
. €. hypericifolia. 
C. hyssopifolia. 
C. Tracyi. 
. C. prostrata. 
C. maculata. 
. C. humistrata. 
C. Mathewsii. 
C. conferta. 
C. adenoptera. 
