54 



Division III: Apetalae. 



Natural Order, Polygonaceae. 



Polygonum Acre. H. B. (pondweed. ) An aquatic plant with 

 narrow, lanceolate leaves, sprinkled with brownish patches. 

 Flowers erect, on spikes three inches long, with swelled ter- 

 minal portion, minute. Rare. Found by Reade in Pembroke 

 Marsh. 



Polygonum Convolvxilus. (black bindweed.) A twining 

 plant with stems one to three feet long, slender Leaves one 

 to two inches long, halberd-shaped, pointed. Flowers in leafy 

 racemes, greenish-white followed by a triangular nutty seed- 

 Roadsides and waste places. Not common; probably intro- 

 duced among seeds. Biennial. August. 



Polygonum Fagopyrum. (buckwheat.) An erect smooth 

 plant two to three feet high, stem reddish, juicy. Leaves 

 arrow-shaped, one to one and a half inch long. Flow^ers pale 

 rose-colour on short stems at leafstalks, followed by a seed- 

 grain similar to that of the above species, and largely used in 

 America for food. It is evidently a remnant of cultivation, and 

 is found on the flat land at North Village, Pembroke. Annual. 

 July to September. 



Coccoloba Uvifera. Linn, (seaside grape ) A largely dis- 

 tributed tree, especially along the sea shore ten to twenty feet 

 high, with smooth spreading branches. Leaves smooth, shin- 

 ing, rounded, heart-shaped massive, three to six inches long, 

 and in many of them broader. Flowers in slender, jointed 

 stalks, forming dropping racemes,^ small, whitish, followed 

 by berries of purplish colour, in bunches like to and of the size 

 of grapes. They have an acrid and rough taste verj' different 

 from true grapes, although bunches of either side by side are 

 scarcely distinguishable. Early Summer. 



Rumex Acetosella. Linn, (sour grape.) A small species 

 of dock, similar in every respect to the following species except 

 that the acrid taste of the leaves closely resembles sorrel, and 

 leaves etc. , are much smaller. 



Rumex Obtusifolius. Linn, (common dock. ) Has a stout 

 stem, erect, angular, two to three feet high. Lower leaves es- 



