MONOECI A.— MONADELPHI A . 36 1 



565. THUYA. Arbor vita?. Coniferoe. 



T. occidentalis : branches ancipitous ; leaves imbricate 

 in 4 rows, ovate-rhomboidal, appressed, naked, 

 tuberculate ; cones obovate ; interior scales trun- 

 cate, gibbous beloiv the summit. 

 HAB. Rocks and mountains. A small tree ; branch, 

 irreg., tough; leav. perennial. 



566. CUPRESSUS. Cypress. Coniferoe. 



1. C. thuyoides: branchlets ancipitous; leaves imbricate 



in 4 rows, ovate, tuberculate at base ; cones sub- 

 spherical, angular. 

 HAB. Swamps. A large tree ; leav. minute, peren. ; 

 cones very small. 



2. C.disticha: leaves distichous, flat; sterile florets 



paniculate, leafless ; cones spherical. 

 HAB. Swamps. A very large tree; leav. small, 

 lin., acute. 



567. ACALYPHA. Three-seeded mercury. Eu- 

 phorbiaceoe. 



A. virginica : pubescent ; leaves on short petioles, 

 lanceolate-oblong, serrate ; involucruci cordate, 

 ovate, dentate, axillary, nerved, denize. 

 HAB. Dry gravelly soil. Aug. ©. Stem 8 — 

 15 m. high, erect, pules. ; invol. subscss. 



563. PHYLLANTHUS. Euphorbiaccu:. 



P. obovatus : leaves alternate, oval, obtuse, smooth 

 somewhat distichous ; flowers few, axillary, pedi- 

 cellate, nodding ; stem erect ; branches distichous. 

 HAB. Gravelly banks. June — July. ©. Stem 

 12 in. high; leav. entire; stam. 6. 



)Q9. MELOTIIRIA. Small creeping cucumber. Cv 

 curbilaceoz. 



M. pcndula : leaves somewhat reniform, lobed and an 

 gled, slightly hispid ; berry oval, smooth. 

 HAB. Shady hanks. June. ©. Slender, climb- 

 ing't stem hairy ; Jl. yell. 



