324 MONOECIA.— MONANDRIA. 



HAB. Shady woods. June. U. Root Jib r.; stem 

 8—10 tit, high, genie. ; ft. purp* 



D0DECANDR1A. 



523. ASARUM. Indian ginger. 



1. A. canadense : leaves broad-reniform, geminate; 



calyx woolly, deeply 3-parted ; the segments sub- 

 lanceolate, reflexed. 

 HAB. Shady rocks. May — June. U . Leav. long- 

 petiol., pubes. ; ft. axilL, pendul., solit. 



2. A. virginicum : leaves solitary, roundish-cordate, 



smooth and coriaceous ; flower subsessile ; calyx 

 short-campanulate, smooth externally. 

 HAB. Rocky woods. April. U . Lean, very 

 smooth ; seg. of cal. obtuse. 



MONOECIA. 

 MONANDRIA. 



5241 ZOSTERA. Stam. and pist. inserted in 2 rows 

 upon one side of a spadix. Spath foliaceous. 

 sterile fl. Anth. ovate, sessile, alternating 

 with the germens. fertile fl. Germ, ovate. 

 Style bifid. Drupe with 1 seed. 



325. CAUL1NIA. sterile fl. Perianth 0. Anth. 

 sessile, fertile fl. Perianth 0. Style fili- 

 form ; stigma bifid. Caps. 1 -seeded. 



526. ZANN1CHELLIA. sterile fl. Perianth 0. 



fertile fl. Cal. 1 -leaved. Cor. 0. Style 

 1 : stigma peltate. Capsules about 4, sessile. 



527. EUPHORBIA. Involucrum resembling a calyx, 



ventricose, the alternate segments (petals L. 

 nectaries?) petaloid. sterile fl. 12 or more, 

 mostly simple, each consisting of an anther with 

 its filament articulated to a pedicel, (coming to 

 maturity successively.) Cal. and Cor. very 

 rarely present, fertile fl. solitary, central, 

 stipitate. Cal. and Cor. 0. Styles 3, 2-cleft. 

 Caps. 3-lobed. 



