EUPHORBIA 



CO. Branches fleshy, a spine on each side of every 



leaf or leaf-scar, in a few the leaf transformed 



into a third thorn between them. 

 D. Podaria {the projections bearing leaves and spines} 



distinct: branches cylindrical or obsoletety 



angled. 



8. BpUndens, Bojer. Crown of Thorns. Fig. 798. 

 Stems 3—4 ft. long, 3^-1 in. thick, covered with stout 

 spines almost an inch long, somewhat twining : 

 branches few : Ivs. few, on the young growth, obovate 

 to oblong-spatulate, thin, bright green, 1-2 in. long; in- 

 volucres in long-pedimcled dichotoraous cymes, near the 



bj 



lada 



gascar, flowering all the year, but mostly in winter. B.M. 

 2902. L.B.C.18:17]3.-Coolhouse plant. The red bracts, 

 with green leaves on the sinuous spiny stems, are strik- 

 ing. It can be trained into ornamental forms. 



9. neriifdlia, Linn. Arborescent or shrubby: stem, 

 obtusely 5-angled, 3-7 ft. or more high: the small mam- 

 miform podaria in rows, with short, dark colored, di- 

 vergent spines : branches numerous, bearing obovate- 

 oblong, obtuse, thick Ivs., 3-5 in. long at the summit : 

 small, sessile cymes of greenish invohicres in the up- 

 per axils. June, July. E. Indies. — Large Ivs. persistent 

 from autumn to spring. Cristate forms are in cult. 



10. drupifera, Schum. & Thorn. {E. grandifdlia, Haw.) . 

 Arborescent: stem terete: branches obsoletely 4-5- 

 angled ; spmes small : Ivs. terminal, obovate-cuneate, 

 obtuse or retuse, .5-8 in. long: small cymes axillary, pe- 

 duncled: capsule drupaceous. Guinea. 



5UPH0RBIA 



563 



796. Euphorbia fulgens U^ '- 



11. mamilldsa, Lem. Low, cespitose: branches less 

 than an inch m diara. : podaria elongated, conical, in 5 

 spiral rows: Ivs. and spmes small, soon deciduous. 

 DD. Podaria confbii III nih' I ih^ in i in h, s more or less 



B. Growths or b) nihil s m/l I \-. m, Inm i 4-angled, 

 especially on tin mum mis nml in J'J. alcicornis 

 fat}. 



12. aiitiqu6rum, Lmn. {£. Havuninsis, Hort.? E. 

 Idctea, Hort.?). Shrub, 8-10 ft. high : branches erect- 

 spreading, jointed; angles compressed, repand dentate, 

 the teeth 1 in. long; spines 1-3 lines long: Ivs. minute, 

 ovate-spatulate or rotund. India, and naturalized in 

 other places, notably the W. Indies, where it is used for 

 hedges. — Cristate forms are in the trade, as E. lactea 

 monstrosa f and E. Havanensis cristala. 



13. grandicdmis, Qoebel. Fruticose: branches 3 in. 

 wide; angles broadly winged, deeply lobed and sinuate; 

 spines large, 1-2 in. long, light colored. S. Afr. Neu- 



berfs Deutsche Garten Mag. 40:381. -A striking plant, 

 with the widest wings and longest spines of all. 



14. Hermentiina, Lem. A shrub, 3-4 ft. high, with 

 many non-jointed, erect branches, their edges repand- 

 dentate and broad, slightly concave faces, white-mar- 



797. Euphorbia pulcherrima (> 



L-5). 



bled when young ; spines 2-2}4 lines long : Ivs. lanceo- 

 late or lance-spatulate, 3-5 in. long. Gabon river, W. 

 Afr. — Considered one of the best. 



15. liLctea, Haw. A shrub: branches erect; faces 1-3 

 to. wide, plano-convex, yellow and green striped; edges 

 subcompressed, repand dentate; spines 2-3 lines long. 

 East Indies. 



16. gT&ndldens, Haw. Tree, 20-30 ft. high and as 

 much as 3 ft. in diam. : branches slender, %-% in. 

 wide, numerous, erect-spreading, making a rounded 

 head in old plants ; faces almost plane ; angles deeply 

 lobed-dentate; spines .3-5 lines long, slender: Ivs. very 

 small, triangular. S.Afr. G.C. II. 26:721. -E, alcicornis, 

 Hort., is probably a form of this with flat branches. 



17. trianguliris, Hort. Par. Stem 3-7 ft. high, trian- 

 gular: numerous branches erect, with convex faces dark 

 green ; the winged angles sharply toothed and short- 

 spined. S. Afr. 



mgle. 



EE. Orowths or branches with 4 or 

 rarely S-angled. 



18. Canarifinsis, Linn. Shrub or tree, 12-20 ft. high, 

 with many 4-G-angled suberect 

 branches, as much as 3 in. thick, 

 from the base ; angles subentire; 

 spines 2 lines long, black : Ivs. al- 

 most none. Canary Islands. Gn. 

 53, p. 46. G.C. 11.20:629. 



19. virdsa, Willd. (E. cceruUs- 

 cens. Haw.). A shrub as much as 

 15 ft.high,much branched :branohes 

 4-5- or sometimes 3-angIed, 1 in. 

 thick, ascending ; angles lobed ; 

 epidermis bluish; spines strong, 

 4-5 lines long, black. S. Afr. 



20. Abyssinica, Rausch. Sti m 

 robust, 30-40 ft. high, 9-14 ft. in 

 greenhouses: branches few. 4-0 

 in. in diam., dark green; angles 

 5-8,obtuse but prominent; edges 

 undulate; spines short, re- 

 curved : Ivs. minute, spat- 

 ulate. Abyssinia. Gn. 52, 

 p. 106. G.C. 111.20:497.- 

 Much resembles Cerens 

 Peruvianus. 



21. Pffirsdorffii, Hort. 

 Trunk round, lK-2!2 in. 

 thick, 9-ribbed, much 

 branched when old ; spines 

 large, 4-8 lines long. 



22. candeUbmm, Trem. & Klotzch. Tree, 20-30 ft. 

 high, with ahead 60-80 ft. in circumference: trunk short 

 and thick, densely branched : branches 3^-angled ; 



