EUPHORBIA.] EUPHORBIACEJE. 359 



10. E. E'sula, L. ; perennial, leaves linear or oblong-lanceolate, bracts 

 broadly cordate mucronate, capsule granulate, seeds smooth ovoid brown. 

 Woods and fields, native in Jersey ; naturalized in Forfar, Edinburgh, and 



Alnwick ; fl. July. Rootstock creeping. Stem 1-2 ft., erect, slender, naked 

 below, simple or with flowerless side-branches. Leaves 1-1J in., sessile, 

 spreading, acute or obtuse, sometimes denticulate, thin, 1-nerved. Rays 

 10-20, long, slender, forked only at the tips ; bracts |-f in. diam., reniform- 

 cordate, acute or obtuse. Involucres small, loug-pedicelled ; glands with 

 short straight cusps. Capsule small, valves with a dorsal furrow. Seeds 

 with a small caruncle. DISTRIB. Europe, N. and W. Asia; introd. in N. 

 America. 



E. CYPABIS'SIAS, L. ; perennial, leaves narrow-linear quite entire, bracts 

 cordate obtuse, capsule granulate, seeds smooth globose pale. 

 Woods and plantations, from Cumberland southd. ; fl. June-July. Habit of 



E. E'sula, but rather glaucous ; rootstock creeping and stoloriferous ; more 



leafy; leaves narrower; bracts smaller; and seeds almost white. DISTRIB. 



Europe ; introd. in N. America. 



*** Leaves opposite. Umbels 3-4-rayed. Glands of involucre lunate, cuspidate. 



11. E. Lath'yris, L. ; biennial, leaves decussate linear-oblong broader 

 at the base obtuse, bracts cordate at the base, capsule smooth, seeds ridged 

 and wrinkled dusky brown. Caper Spurge. 



Copses and woods, native ? in Somerset and Sussex, naturalized else- 

 where and in the Channel Islands; (an alien, Wats.}] fl. June-July. 

 Glabrous, glaucous. Stem stout, erect, short, leafy the first year, during the 

 next elongating to 3-4 ft., and flowering. Leaves 2-8 in., sessile, spreading, 

 1-nerved, tip rounded apiculate. Rays stout, unequal, irregularly forked ; 

 bracts 1-3 in., ovate-lanceolate, acute. Involucres large, sessile, cusps of 

 glands suberect. Capsule J in. diam. Seed % in., broadly oblong, obliquely 

 truncate, caruncle large. DISTRIB. S. Europe; introd. in N. America. 



SECTION 2. Stems prostrate, dichotomously branched. Leaves opposite, 

 stipulate. Involucres axillary or in the forks, solitary. 



12. E. Pep'lis, L. ; annual, glabrous, leaves dimidiate-cordate subentire. 

 Sandy shores, S. Wales and Cornwall to Hants, very rare ; Waterford ; Chan- 

 nel Islands ; fl. July-Sept. Procumbent, glaucous, purplish. Stems many, 

 6-12 in., spreading from the root. Leaves ^ in., coriaceous, shortly petioled, 

 obtuse or retuse, base auricled on one side truncate on the other ; stipules 

 ovate, 2-fid. Involucres shortly pedicelled, glands oblong. Capsule in., 

 valves smooth, keeled, glabrous. Seeds white, not caruncled. DISTRIB. 

 Atlantic and Mediterranean shores, from France southd. ; salt tracts of Asia . 



2. BUX'US, Tournef. Box. 



Evergreen shrubs. Leaves opposite, exstipulate. Flowers monoecious, 

 in axillary fascicles or spikes, green, 4-bracteolate, uppermost female. 

 MALE. Sepals 4, 2 outer imbricate in bud. Stamens 4, hypogynous, 

 opposite the sepals, filaments stout fleshy ; anthers introrse. 



