182 COMMON CANADIAN WILD PLANTS. 



3. F. VlF'idis, Michx. f. (Gbeen Ash.) Glabrous through- 

 out. Fruit as in No. 2. Leaflets 5-9, bright green both sides. 

 — Western Ontario and N.W., along streams. 



4. F. quadrangula'ta, Miohx. (Blue Ash.) Branch- 

 lets often square, smooth. Leaflets sharply serrate, green 

 both sides. Fruit narrowly oblong, of the same width at 

 both ends, often notched at the apex, wing-margined. — 

 Lake Erie coast. 



• * Leaflets sessile. 



5. F. sambueifo'lia, Lam. (Black or Water Ash.) 

 Branchlets and petioles smooth. Leaflets 7-9, sessile, serrate. 

 Fruit winged all round. Calyx wanting, and the flowers 

 consequently naked. — Swamps. 



III. APET'ALOUS DIVISION. 



Flowers destitute of corolla, and sometimes also of 

 calyx. 



Order LXXIIL ARISTOLOCHIA'CE^. (Bibthwort F.) 



Herbs with perfect flowers, iJie tube of the 3-lobed calyx 

 adherent to the 6-celled viany-seeded ovary. Leaves heart- 

 shaped or kidney-shaped, on long petioles from a thick 

 rootstook. Stamens 12 or 6. Flowers solitary. Calyx dull- 

 coloured, the lobes valvate in the bud. 



AS'ARVIH, Tourn. Wild Gingek. 

 A. Canaden'se, L; Radiating stigmas 6. Leaves only a 

 single pair, kidney-shaped, and rather velvety, the peduncle 

 in the fork between the petioles, close to the ground. Root- 

 stock aromatic. Calyx brown-purple inside, the spreading 

 lobes pointed. — Rich woods. 



Order LXXIV. PIPERACE^. (Pepper Family.) 



A small family having, with us, but a single representa^ 

 tive : — 



