400 KUi'uouuiACiwK. (spurge family.) 



Synopsis. 



§ 1. Ovules and seeds goUtiiry in the cells. Flowers monoecious. 

 • Flowers without floral euvelopes, enclosed in a common cup-sliuped iDvolucre' 



1. EOPHOIIBIA. Fertile flower solitary in tlie 4 • 5-tootlicd involucre. Slurilu flowers ser 



enil, viich reduced to a single stamen. 



• • Flowers lu bracted spikes or racemes ; the upper ones sterile, ttie lowest fertile. 



•«- Flowers apctalous. 



++ Stigmas and cells of the capsule G - 7. 



2. HIPPOMANE. Carpels woody, indehiscent. Splices terminal. Staminate flowers clus 



tered. 



*■* A* Stigmas and cells of the dehiscent capsnle 3- 



3. STILLTNGIA. Calyx 2 • 3-toothed. Anthers erect. Staminate flowers clustered. 



4. EXCfECAKIA. Calyx 3-parted. Anthers pendulous. Staminate flowers single. 



5. ACALYPHA. Stigmas many-parted. Flowers spiked. Uracts of the pistillate flowers 



leafy, toothed. 



6. TKAGIA. Stigmas 3, simple. Flowers racemed. Bracts small, entire. 



••- t- Staminate flowers (except No. 1 in Croton), or the pistillate also furnished with petals. 



7. CROTOX. Pistillate flowers apetalous, or with minute petals. Stamens 6 or more, distinct. 



8. CROTONOPSIS. Pistillate flowers apetalous. Capsule Icelled. Stamens 5, distinct. 



9. APIIORA. Pistillate and staminate flowers 5-petalled. Capsule 3-ceUed. Stamens 10 



monadelphous. 



• * * Flowers cymose or panicled, apetalous. 



10. CNIDOSCOLUS. Flowers cymose. Calyx white, coroUa-likc. 



11. R1CINU3. Flowers iu crowded panicles. Calyx herbaceous. 



i 2. Ovules, and commonly the seeds, 2 in the cells. 

 « Flowers monoecious, apetalous. Ovary 3-celled. Herbs. 



12. PHY'LLANTIIUS. Flowers axillary. Calyx 5 - 6-partcd. Stamens 3, monadelphous. 



13. PACHYSANDKA. Flowers spiked. Calyx 4-parted. Stamens 4, distinct. 



* « Flo%vers dioecious, apetalous. Ovary 2 celled. Shrubs. 



14. DRY'PETES. F'lowers in axillary clusters. Fruit drupaceous, Icelled, 1-seeded. 



1. EUPHORBIA, L. Spurge. 



Flowers monoecious, destitute of calyx and corolla ; the single pistillate, and 

 several monandrous staminate ones included in a cup-shaped or top-shaped 4 - .5- 

 toothed involucre, which has commonly thick and often colored glands between 

 the teeth. Styles 3, 2-cleft. Capsule cxscrted, 3-cellcd : carpels 2valved, 

 1-sceded. — A polymorphous genus of plants with acrid milky juice. 



§ 1 . Leaves without stipules. 

 * Stem erect, ximhellately branched ahove : involucres solitary, terminal and in the 

 forks of the branches: leaves of the stem akamate, those oj the branches opjMsite or 

 whorled. 

 ■*- Glands of the involucre 5, with white petal-like appendages: leaves entire: peren- 

 nials. 

 1. E. eorollata, L. Stem smooth or pubescent, branches 4-6, twice or 

 thrice forking, mostly short and fastigiate ; leaves thick, oblong or oval, obtuse, 

 pale and mostly hairy beneath ; involucres pcdicelled ; appendages of the (green/ 



