358 ENNEANDRIA MONOGYNIA. 



HAB. Road sides, &c. Aug. Sept. ; stem 35 feet high, pu* 

 besc. ; spik. subpend., rad. 



* * * Mowers in paniculate spikes ; perianth 5-leavcd. 



POLYGONELLA. 



P. articulatum : flowers perfect, octandrous, trigynous, nodding; 



spikes paniculate, filiform ; pedicels solitary, articulate near the base ; 



bracts imbricate ; leaves linear ; nut triquetrous. 

 HAB. Barren sandy woods. Sept. (v) ; afoot high, branched; bracts 



trunc. ; Jl. rose-col. 



* * * * Flowers in racemose panicles ; (leaves subcordate or sagit- 

 tate.) FAGOPYRUM. 



P. convolvulus : flowers octandrous ; styles 3-cleft ; leaves oblong, 

 hastate-cordate ; stem climbing, angular, somewhat scabrous ; seg- 

 ments of the perianth obtusely carinate. 



HAB. Sandy fields, &c. July Sept. (v) ; leaves petiol. ; raceme 

 interrupt. ; Jl. reddish. 



P. cilinode: flowers octandrous ; styles 3-cleft ; leaves cordate ; stipules 

 rather acute, ciliate at the base ; stem angular, climbing or prostrate, 

 pubescent ; segments of the perianth obtusely carinate. 



HAB. Hills. Aug. <v) ; plant minutely pub es. ; leaves subhast. ; Jl. 

 pale rose-col. 



P. scandens : flowers octandrous, trigynous ; leaves broadly cordate ; 

 stipules truncate, naked ; stem climbing, smooth ; segments of the 

 perianth winged. 



HAB. Hedges, &c. Aug. (v) ; stem 4 5-ang., purp. ; Jl. large, 

 aggreg. , white or rose-col. 



P. sagittatum; flowers octandrous, capitate; styles 3-cleft; leaves 

 sagittate, stem retrorsely aculeate. 



HAB. Wet thickets. July Aug. <v) 5 stem slender, prost. ; Jlowera 

 in sm. heads, white. 



P. arifolium : flowers hexandrous, distinct ; styles bifid ; spikes few- 

 flowered, leaves hastate ; stem retrorsely aculeate. 



HAB. Wet thickets. July Sept. ; stem slender, prostrate, re- 

 motely acul. ; Jl. rose-col. 



ENNEANDRIA. 

 MONOGYNIA. 



Cienera. 



192. LAURUS. Calyx mostly 6-parted, petaloid. Ncct. consisting of 

 3 bisetose glands surrounding the germen. Stam. 12 ; 6 of them 

 interior, 3 of which are sterile and glanduliferous. 



