EUPHORBIA 



EUPHORBIA 



563 



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

 leaf or leaf-scar, in a few the leaf I raiisformed 

 into a third thorn between them. 



u. Podaria {the projections hearing leaves and spines) 

 distinct: branches cyllndrir(tl or obsn/elely 

 angled. 



8. spl6ndens, Bojer. Crown op Thorns, Fig. 798. 

 Stems 3—1 ft. long, %-l 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, l-'2 in. long; iu- 

 volucres in long-peduncled dichotomous cymes, near the 

 ends of the branches, each closely suhtended by two 

 broadly ovate briglit red bracts, filaments f(»r]ved. Mada- 

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

 2902. L. B.C. 18 riTl.i.-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 shrubViy: stem 

 obtusely 5-augIed, 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 siimmit ; 

 small, sessile cymes of greenish involucres 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. grand ifdlia, Haw.). 

 Arborescent: stem terete : branches obsoletely 4-5- 

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

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

 duncled: capsule drupaceous. Guinea. 



bert's Deutsche Garten Mag. 40:201.— A striking plant, 

 with the widest wings and longest spines of all. 



14. Hermentiana, Lem. A shrub, 3^ ft. high, with 

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

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



796. Euphorbia fuleens (X 3'.i). 



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

 than an inch in diam. : podaria elongated, conical, m o 

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

 DD. Podaria confluent into ribs: branches more or less 



acutely wing-anghd. 

 s. Growths or branches S-angled (sometimes 4-angled. 

 especially on the main a:ris,atid in £. aletconus 

 flat). 



12. antiqudmm, Linn. (H. Havanensis, Hort. ? E. 

 (a'c(ert, 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 "sed for 

 hedges. -Cristate forms are in the trade, as i. lactea 

 monstrosa? and E. ffaranensis cristala. 



13. grandic6mis, Goebel. Fruticose: branches 3 in. 

 wide; angles broadly winged, deeply lobed and sinuate; 

 spines large, 1-2 Ln. long, light colored. S, Afr, ^eu- 



797. Euphorbia pulcherriuia (Xl-5). 



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

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

 Afr. — Considered one of the best. 



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

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

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

 East Indies. 



16. grindidens, Haw. Tree, 20-30 ft. high and as 

 much as 3 ft. in diam.: branches slender, Yi-'Mixi. 

 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. alcicomis, 

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



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

 gular: numerous l)ranclies erect, with convex faces darlt 

 green ; the winged angles sharply toothed and short- 

 spined. S. Afr. 



EE. Growths or brandies ivith 4 or more angles or 

 rarely o-migled. 



18. Canari^nsis, Linn. Shrub or tree, 12-20 ft. high, 

 with many 4-6-angled suberect 

 branches, as mucli as 3 in. thick, 

 from the base ; angles snbentire; 

 spines 2 lines long, black : Ivs. al- 

 most none. Canary Islands. Gn. 

 .53, p. 46. G.C. II. 20:629. 



19. virdsa, Willd. (E. carulis- 

 cens, Haw,), A shrub as much as 

 15 ft. high, much branched :branches 

 4-5- or sometimes 3-angled, 1 in, 

 thick, ascending ; angles lobed ; 

 epidermis bluish ; spines strong, 

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



20. Abyssinica,Rausch. Stem 

 robust, 30^0 ft. high, 9-14 ft, in 

 greenhouses : Iiranches few, 4-6 

 in. in diam., dark green; angles 

 ,5-8,obtuse but prominent; edges 

 undulate; spines short, re- 

 curved : Ivs, minute, spat- 

 ulate. Abvssinia. Gn, 52, 

 p. 106. G.'C. III. 20:497,- 

 Much resembles Cere us 

 Perucianus. 



21. PSfirsdorJfii, Hort. 

 Trunk round, 1^2-2'.; in. 

 thick, 9-ribbed, much 

 branched when old ; spines 

 large, 4-8 lines long. 



22. candelihrum, Trem. & Elotzch. Tree, 20-30 ft, 

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

 and thick, densely branched : branches 3-4-angled ; 



798. Euphorbia 

 splendens (X 



