148 DODECAND. TRIGYN. 



Deeper yello^v than the hist. Two of the petals with broad lobes. 



5. EUPHORBIA'. 



1. E. Peplus {petty Spurge), umbel of 3-forked rays, partial 

 involucres ovate and, as well as the obovate shortly pctiolated 

 leaves, entire, nectaries crescent-shaped horned. Liglitf. 

 p. 249. E. 5. L959. 



Hab. Waste places, corn-fields, and gardens. Fl. Aug.©. 

 Eight to ten inches high, branched. ISIilky juice very acrid; used to 

 destroy warts. 



2. E. exigua {dwarf Spurge), iimljel of 3 forked rays, partial 

 involucres lanceolate and, as well as the linear- lanceolate 

 leaves, entire. Lighlf. p. 2.iO. E. B. t. 1336. 



Hab. Corn-fields, in light soils and gravelly places. Burntisland, 

 Light f. Field at the marle-pit, near Muttonhole; near Cros?.jate- 

 toll, and field near Musselburgh, Maugh. Fl. July — Sept. ©. 



Ste)7i erect, nearly simple, 1 — G inches high. Leaves erect. Necta- 

 ries 4, roundish, with two horns. 



3. E. helioscopia {Sim Spurge), innl)cl of 5 forked rays, par- 

 tial involucres obovate and, as well as the wedge-shaped 

 leaves, .serrated. Light/, p. 250. E. B. ^ 883. 



Hab. Corn-fields and gardens, frequent. Fl. Aug. G • 

 Stem slightly pubescent, 1 foot or more high, often branched at tlie 

 base. Nectarirs i, roundish, entire. 



4. E. Esula {leafy -brMiclied Spurge), umbel of many forked 

 rays, partial involucres somewhat heart-shaped and, as well 

 as the linear-obovate leaves, entire. E. B. t. 1399. 



Hab. Said to have been found on a bank by Lord Abercorn's house, 

 Lightf. Wood near a rivulet at Abercorn, 13 m. from Edinb., 

 Mr. J. Mackay. Near Gladsmuir Kirk, in a lane leading from the 

 Haddington road to Elvington; and field near ^\'est Pilton, 7 m. 

 N. W. of Edinb., Maugh. Fl. July. 7/ . 



One to two feet high, with small branches. Necfai-ies large, cordate, 

 brown, with two horns. 



5. E. Cyparissias {Cypress Spurge), mnbel of many forked 

 rays, jiartial involucres broadly heart-shaped and,- as well as 

 the linear mucronated leaves, entire. E. B. t. 840. 



Hab. CoUington woods, near Edinb., Mr. Arnott. 



Stem 1 foot high, clothed with numerous narrow leaves, which are. 



' This genus, of which so few species are inhabitants of northern lati- 

 tudes, is attended with many difficulties to the student. The number of 

 stamens is by no means constant ; nor do they all appear at once; a circum- 

 starice to be accounted for, now that we know that each stamen is in itself 

 a distinct flower. The rays of the umbel too are variable, starved speci- 

 Kiers having^ fewer than are attributed to them in the specific character. 

 The shape of the nectarieif, Icnvex, and involucres, is more to be depended 

 upon. 



