71 



Spike slender, erect, terminal. Flowers whitish. Sheaths cov- 

 ered with rusty hairs. The sepals of this and the last species 

 are dotted with conspicuous glands. 



1888. P. hydropiperoipes, Mx. (Mild Water-Pepper.) 



In water and wet places along streams. Billings Bridge. Cassel- 

 man. Hull. Aug. 1. Perennial. Stem smooth, weak, 

 branching. Sheaths hairy. Flowers white in erect spikes. 

 Sepals not dotted. 



1890. P. orientate, L. (Prince's Feather.) 



A garden escape. A tall, handsome annual with dense cylindrical 

 spikes of large rose-coloured flowers. Billings Bridge. Aug. 2. 



1895. P. arifolium, L. (Halberd-leaved Tear-thumb.) 



Swamps. Lake Flora. Mer Bleue. July 2. (B) Leaves 

 large, long-petioled. Peduncles glandular, bristly. 



1896. P. sagittatum, L. (Arrow-leaved Tear-thumb.) 



Low ground and along streams. Much commoner than the last. 



July 2. (B) Leaves short petioled. Peduncles smooth. 

 Both of these last-named plants are annuals, with weak stems, 



beset on the angles with sharp, reflexed prickles, by means of 



which they support themselves amongst the low herbage where 



they grow. 



1897. P. Convolvulus, L. (Black Bind-weed. Wild Buckwheat.) 

 An inti*oduced and troublesome weed throughout the Dominion. 



June 4. Seeds black, dull. 



1898. P. cilinode, Mx. (Hairy -jointed Bind-weed.) 



Sandy and clayey banks. Not uncommon. Aug. I. (B) A 

 rather attactive plant, with deeply-veined leaves. Stems red, 

 climbing. Flowers white, in panicled racemes. Seeds smooth 

 and shining. 



1899. P. dumetorum, L. var. soandens, Gray. (Climbing False 



Buckwheat.) 

 Climbing over bushes. Township of March (A. If. Moore). 

 Chats Rapids. Rare. Aug. 1. Seed smooth and shining. 

 FAGOPYRUM, Tourn. Buckwheat. 



1900. F. Tartaricum, L. (Rough Buckwheat.) 



An accidental introduction. Billings Bridge. Stewarton. July 



