53 EUPHORBIACEjE. 



3, short. Capsule S-coccom. Seeds eamacalsie. — Shrubs; leaves Jlesht/, alternate; iovrer- 

 heads cymose : involucre red. 



103. P. tithymaloides, PoiV. Leaves ovate-roundish, elliptical, or spathulate-lanceolate, 

 keeled on the midrib beneath ; ovary glabrous, exserted j capsule devoid of horns. 



a. Leaves ovate-roundish. — Jacq. Amer. Pict. 4. 138. — Euphorbia, Jacq^. 



/3. padifolitts, Poit. Leaves elliptical, pointed usually at both ends. — Bot. Reg. t. 837 ; 

 Bat. Mag. t. 2514. — P. carinatus, Spr. P. tithymaloides, var. anacampseroides, Poit. 

 Euphorbia carinata, Bot. Mag. 



y. angustifolius, Poit, Leaves spathulate-lanceolate. — Poit. in, Ann. Mus. 19. t. \9.f. 

 3. — Hab. Jamaica!, Dist. (7), on rocks along the seacoast; S. Vincent!, Gnild. ifi), and 

 other Caribbean islands, Jacq. (a) ; [Venezuela]. 



37. EUPHORBIA, L. 



Involucre calyciform, shortly 5-4-iid, and usually glanduliferous between the lobes, inclu- 

 ding indefinite (j and one central $ flower. Flowers and capsules as in Pedilanthus, but 

 styles 3, mostly bifid. — Flower-Tieads usually in nmbelUform cymes, rarely polygamous by 

 abortion. 



§ 1. Succulent, aphyllous shrubs. 



104. E. alata, Hook. I Unarmed, articulated, branched : branches opposite or vifhorled, 

 oblong-linear, complanate-%-winged ; umbels contracted, terminal and lateral, bibracteate, 

 twice (or once) 3-rayed : universal ones sessile, partial shortly pedicellate ; involucre few- 

 flowered, with 5 petaloid appendages and fringed interior lobes. — Hook. Ic. t. 700. — Habit 

 of Yiscum opuntioides .- woody below : internodes 3"-8" long, 3'" broad — Hab. Jamaica !, 

 Pd., in rocky woods, Manchester. 



§ 3. Shrubs ; leaves opposite or whorled, long-petioled, equal at the base, quite entire : 

 petiole articulated at the sheathing base ; stipules glanduliform, inconspicuous. 



105. E. nudiflora, JoAiq. Branches cylindrical, with distant, deciduous foliage; leaves 

 opposite (or ternate), ovate, elliptical, or elliptical-lanceolate, bluntish, glabrous or subciliate; 

 cymes terminal and axillary, subsessile, several times dichotomous ; involucre with 5 peta- 



, loid, crenate appendages and fringed interior lobes ; capsule glabrous, long-exserted, nodding ; 

 seeds ecarunculate, ovoid-oblong, UTegul*ly wrinkled-tubercled. — Jacq. Ic. Bar. t. 479. — 

 E. graminea, Sv>. {nan Lin.). — A dichotomous or trichotomous shrub, lO'-l' high, leaves 

 2"-l" long : petiole 6"'-4"' long, usually as long as the cymes ; seeds 1'" long. — Hab. Ja- 

 maica!, M., March, Wils., common un limestone; S. Vincent!, Guild.; [Mexico!]. 



y' 106. E. cotinifoU^, L. Branches cylindrical, thickened at the nodes; leaves opposite 

 or ternate, ovate or ovate-roundish, bluutish, subcordate at the base, glabrous, glaucous 

 beneath, as long as or exceeded in length by the petiole ; cymes terminal, peduncled, tricho- 

 tomous ; involucre with 5 petaloid, quite entire appendages, and cut iuteiior lobes ; capsule 

 glabrous ; seeds ecarunculate, ovoid, irregularly wrinkled.^ — Hook. Exot. t. 59. — A high 

 shrub ; leaves 2"-l" long : petiole 3"-l" long, with stipular glands at the node.— Hab. Bar- 

 badoes!. Lane; Trinidad!, Lockh.; [Venezuela!, New Granada!, Guiana!]. 



§ 3. Shrubs; leaves opposite or whorled, shortly petioled, inserted on the inner side 

 of a spreading stipular sheath. 



107. E. vaginulata, ffr. {n. sp.). Branchlets densely ringed with aphyllous, ciUolate, 

 bilobed sheaths; leaves opposite or ternate, inserted into the uppermost or superior sheaths, 

 small, fleshy, spathulate-linear, quite entire, glabrous, or with a few hairs on the midrib be- 

 neath, much longer than the pnberulous petiole ; peduncles simple, short, terminal ; involucre 

 with minute, rounded appendages; capsule glabrous, nodding: styles simple; seeds ecaruncu- 

 late, globose, smooth, ash-colour, red.— A low, branched shrub : nodes annular, 2"'-4"' distant 

 from each other ; branchlets 2'" long, covered entirely with the rounded, spreading sheaths, 

 or the uppermost internodes sometimes developed : leaves 2'" long, i'" broad, veinless : pe- 

 tiole scarcely exsertcd from the sheath; peduncles almost wholly immersed 'in the upper- 

 most sheath , iuvolucral glands blackish, contiguou8,'a little exceeded by the cut lobes ; pedicel • 

 of ? exserted ; capsule scarcely 1'" diam., contracted in the sutures. — Hab. Turk Islands !, 

 Ejalm. 



