EUPHORBIACEAE. 



Vol. II. 



9. Tithymalus Cyparissias (L.) Hill 

 Cypress Spurge. Fig. 2761. 



Euphorbia Cyparissias L. Sp. PI. 461. 1753. 

 T. Cyparissias Hill, Hort. Kew. 172/4. 1768. 



Perennial by horizontal rootstocks, bright green, 

 glabrous. Stems mostly clustered, often growing in 

 large patches, scaly below, leafy above, erect, 1° high, 

 or less, branched, the branches topped by many- 

 rayed umbels ; leaves linear, or almost filiform, those 

 subtending the umbels whorled, the others alternate, 

 sessile, 6'-i' long, i"-ii" broad; involucres turbi- 

 nate-campanulate, i" long, short-peduncled, with 4 

 unappendaged crescent-shaped glands; capsule sub- 

 globose, li" in diameter, spreading, granular on the 

 rounded lobes; seeds oblong, i" long, smooth. 



Escaped from gardens to roadsides and waste places, 

 Massacliusetts to Virginia and Colorado, Naturalized 

 from Europe. Quack salver's spurge. Tree- or Irish-moss. 

 Balsam. Garden-spurge. Graveyard-weed. Welcome-to- 

 our-house. Kiss-me-Dick. Cypress. Bonaparte's crown. 

 Poisonous when eaten in quantities. Bracts yellowish. 

 May-Sept. 



8. Tithymalus liicidus (Waldst. & Kit.) 



Kl. & Garcke. Shining Spurge. 



Fig. 2760. 



Euphorbia lucida Waldst. & Kit. PI. Rar. Hung, i : 



54- pi- 54- 1802. 

 T. liicidus Kl. & GaTcke, Abh. Akad. Berlin 1859 : 



66. 



Perennial by a horizontal rootstock, bright 

 green, glabrous. Stems rather stout, usually 

 clustered, erect or assurgent, 8'-2o' high, usu- 

 ally very leafy, simple or branched, topped by 

 a 4-7-rayed umbel ; branches simple or forked ; 

 leaves, except the whorl at the base of the 

 umbel, alternate, linear or linear-oblong, i'-i-J' 

 long, 2"-6" broad, entire, mostly apiculate, ses- 

 sile, revolute-margined, those subtending the 

 umbel ovate, oval or obovate ; bracts opposite, 

 reniform, obtuse or apiculate ; involucres cam- 

 panulate, ij" long, sessile, bearing 4 yellowish 

 oblong crescent-shaped, 2-horned, unappen- 

 daged glands ; capsule globose-ovoid, 2" in 

 diameter, nodding, finely wrinkled; seeds li"- 

 li" long, nearly terete, whitish, smooth. 



In fields along the Susquehanna River, south- 

 ern New York and Pennsylvania. Formerly mis- 

 taken for Euphorbia nicaeensis All. Naturalized 

 from Europe. July-Sept. 



10. Tithymalus Darlingtonii (A. Gray) 

 Small. Darlington's Spurge. Fig. 2762. 



Euphorbia Darlingtonii A. Gray, Man. 404. 1848. 

 T. Darlingtonii Small, Fl. SE. U. S. 719. 1903. 



Perennial, dark green, often minutely pubes- 

 cent. Stem rather stout, erect, ii°-S° tall, fleshy, 

 topped by a 5-S-rayed umbel, branched above, the 

 branches siinple or forked ; the leaves oblong or 

 oblanceolate, ii'-4' long, mostly obtuse at the 

 apex, sessile, often imdulate, more or less pubes- 

 cent beneath, those of the stem scattered, those 

 subtending the umbels verticillate ; bracts oppo- 

 site, ovate or nearly reniform; involucres cam- 

 panulate, nearly 2' long, bearing 5 reniform 

 crenulate unappendaged glands ; capsule depressed- 

 globose, minutely warty; seeds ovoid-globose. 



New York, Pennsylvania and New Jersey to West 

 Virginia and North Carolina. May-Sept. 



