COMMON CANADIAN WILD I "I, A NTS. 



side of the branches of the panicle, ami often with accompanying 

 tufts of leaves. The Sinner sepals longer than tlie outer OIK;.-;, 

 but shorter than the oblong taper-beaked 1 -celled pod. Seeds 

 obovate, short-pointed. 



7. J. alpi'nus, Villars, var. insignis, Fries. Stems erect, 

 9-18 inches high, with 1 or 2 slender leaves. Branches of the 

 meagre panicle erect, bearing numerous greenish or brownish 

 heads of 3-6 flowers each. Outer sepals mncronate or cuspidate, 

 and longer than the rounded inner ones. Pod short-pointed, 

 light-brown. Seeds spindle-shaped. 



8. J. nodo'sus, L. Stem erect, 6-15 inches high, slender, 

 from a creeping slender and hibc-r-lx'nr'uxj roots took, usually with 

 2 or 3 slender leaves. HeadJ'< >/, s '20- flowered, and overtopped 

 by the involucral leaf. Flowers brown. Pod slender, taper- 

 pointed, 1 -celled. Seeds obovate, mucronate. 



-i- -t- Stamens 3. Seeds tailed. 



9. J. Canadensis, J. Gay, var. coarcta'tus, Engel. Stems 



slender, 9-18 inches high, tufted, bearing 2 or 3 leaves. Panicle 

 somewhat erect, contracted ; the heads 3-5- flowered, deep- 

 brown. Pod prismatic,- abruptly pointed, deep-brown, 

 slender, with short tails. A very late-flowering species. 



ORDER CIII. PONTEDERIA'CEJE. (PICKEREL -WKEI. F.) 

 The most common representatives of this Order with us are 



1. PONTEDE'RIA, L. PICKEREL-WEED. 



P. COrda'ta, L. A stout plant growing in shallow water, 

 sending up a scape bearing a single large arrow-heart-shaped 

 blunt leaf, and a sirike of violet-blue flowers with a x/>ttfh<'-Iike 

 bract. Perianth 2-lipped, the 3 upper divisions united, the 3 

 lower spreading, the whole revolute-coiled after flowering, the 

 fleshy base enclosing the fruit. Stamens 6, 3 of them exserted 

 on long filaments, the rest short. 



a. SCIIOI/LKKA, Schreber. WATER STAR-GIMSS. 



S. gramin'ea, Willd. (FTeteranthera <jr<ti)iint, Vahl., in 



Macouifs Catalogue.) A grass-like herb, wholly under water, 

 only the small yellowish flowers reaching the surface, the htter 

 single, f rom spathes. Perianth salver-shaped, regular. Stamens 

 3, anthers sagittate. 



