148 DODECAND. -TRICYN. 



Deeper yellow than the last. Two of the petals with broad lobes. 



5. EUPHORBIA a. 



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

 involucres ovate and, as well as the obovate shortly petiolated 

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

 p. 249. E. B. t.959. 



HAB. Waste places, corn-fields, and gardens. 1*7. Aug. 0. 

 Eight to ten inches high, branched. Milky juice very acrid j used to 

 destroy warts. 



2. E. exigua (dwarf Spur a e), umbel of 3 forked rays, partial 

 involucres lanceolate and, as well as the linear-lanceolate 

 leaves, entire. Lightf. p. 250. E. B. t. 1336. 



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

 Lightf. Field at the marie-pit, near Muttonhole ; near Crossgate- 

 toll, and field near Musselburgh, Maugh. Fl. July Sept. 0. 



Stem erect, nearly simple, 4 6 inches high. Leaves erect. Necta- 

 ries 4, roundish, with two horns. 



3. E. helioscopia (Sim Spurge), umbel of 5 forked rays, par- 

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

 leaves, serrated. Lightf. p. 250. E. B. t. 883. 



HAB. Corn-fields and gardens, frequent. Fl. Aug. Q . 

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

 base. Nectaries 4, roundish, entire. 



4. E. Esula (leafy -branched 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., 

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

 Haddington road to Elvington; and field near West Pilton, 7 m. 

 N. W. of Edinb., Maugh. FL July. I/ . 



One to two feet high, with small branches. Nectaries large, cordate, 

 brown, with two horns. 



5. E. Cyparissias (Cypress Spurge), umbel of many forked 

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

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



HAB. Collington woods, near Edinb., Mr. Arnott. 



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



a 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- 

 stance 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- 

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

 The shape of the nectaries, leave, and involucres, is more to be depended 

 upon. 



