\ 
400 EUPHORBIACES. (SPURGE FAMILY.) 
Synopsis. voci 
$ 1. Ovules and seeds solitary in the cells. Flowers moncecious. — ZA 
* Flowers without floral envelopes, enclosed in a cup-shaped invol 258. 
1. EUPHORBIA. Fertile flower solitary in the 4- 5-toothed involucre. Sterile flowers sev- 
eral, each reduced to a single stamen. 
* * Flowers in bracted spikes or racemes ; the upper ones sterile, the lowest fertile. 
+ Flowers apetalous. 
++ Stigmas and cells of the capsule6-7. — 
2. HIPPOMANE. Carpels woody, indehiscent. Spikes terminal. Staminate flowers clus- 
++ 4+ Stigmas and cells of the dehiscent capsule 3. 
8. STILLINGIA. Calyx 2-3-toothed. Anthers erect. Staminate flowers clustered. 
4. EXC(ECARIA. Calyx 3-parted. Anthers pendulous. Staminate flowers single. 
5. ACALYPHA. Stigmas many-parted. Flowers spiked. Bracts of the pistillate ^ : 
leafy, toothed. ‘ 
6. TRAGIA. Stigmas 3, simple. Flowers racemed.  Bracts small, entire. 
+ + Staminate flowers (except No. 1 in Croton), or the pistillate also furnished with je 
— $. CROTON. Pistillate flowers apetalous, or with minute petals. Stamens 6 or more, distinct 
8. CROTONOPSIS. Pistillate flowers apetalous. Capsule l-celled. Stamens 5, distinct. " 
9. APHORA. Pistillate and staminate flowers 5-petalled. Capsule 3-celled. Stamens $ 
monadelphous. 
10 
* * * Flowers cymose or panicled, apetalous. 
10. CNIDOSCOLUS. Flowers cymose. Calyx white, corolla-like. 
1l. RICINUS. Flowers in crowded panicles. Calyx herbaceous, 
$ 2. Ovules, and commonly the seeds, 2 in the cells. 
* Flowers moneecious, apetalous. Ovary 8-celled. Herbs. 
12. PHYLLANTHUS. Flowers axillary. Calyx 5-6-parted. Stamens 3, monadelpbous. 
.13. PACHYSANDRA. Flowers spiked. Calyx 4-parted. Stamens 4, distinct. 
+ + Flowers dicecious, apetalous. Ovary 2-celled. Shrubs. 
14. DRYPETES. Flowers in axillary clusters. Fruit drupaceous, 1-celled, 1-seeded. - 
1. EUPHORBIA, L. Seuncr. 
Powis monæcious, destitute of calyx and corolla; the single pistillate, and 
several monandrous staminate ones included in a cup-shaped or top-shaped 4- 
toothed involucre, which has commonly thick and often colored glands ae 
the teeth. Styles 3, 2-cleft. Capsule exserted, 3-celled : carpels omi 
l-seeded.— A polymorphous genus of plants with acrid milky juice — 
: $1. Leaves without stipules. 
* Stem erect, umbellately branched above : involucres solitary, terminal and in ti xe 
forks of the branches: leaves of the stem alternate, those of the branches 
= Gland of the indus 5, vit iiie appendages: basa enire: pee E 
