266 COMMON CANADIAN WILD PLANTS. 



3. 0. elnnamo'mea, L. (Cinnamon Pbkn.) Fertile fronds 

 distinct from the sterile ones, contracted, twice-pinnate, 

 covered with cinnamon-coloured sporangia. Sterile fronds 

 rusty-woolly wten young, smooth afterwards, once-pinnate, 

 the pinnae deeply pinnatifid. The long, sterile fronds in a 

 cluster, with the fertile ones in the centre. — Low grounds. 

 IT. BOTKTCH'irHI, Swartz. MooNWOKT. 

 * Sterile portion of the frond not fiesTiy, 



1. B. Virginia' num. Swartz. (See Pigs. 270 and 271, and 

 accompanying description.) — Eich woods everywhere. 



* * Sterile portion of the frond more or less fleshy. 

 -•- Sterile segment sessile or nearly so. 



2. B. Luna'ria, Swartz, Sterile segment very fleshy, 

 nearly sessile, oblong, simply pinnate, with 5-15 lunate or 

 fan-shaped fleshy divisions. Fertile segment panicled, 2-3- 

 pinnate. — B.are. 



3. B. sim'plex, Hitchcock. Fronds small, seldom 6 inches 

 high, the sterile segment borne nearer the middle of the plant, 

 short-petioled, fleshy, simple, and roundish, or pinuately 

 lobed, with roundish lobes decurrent on the broad and flat 

 indeterminate rhachis. Veins all forking from the base. — 

 Atl. Prov. chiefly. 



4. B. lanceola'tum, Angstroem. Frond 3-10 inches high. 

 Sterile part closely sessile at the top of the slender common 

 stalk, very slightly fleshy, triangular, ternately twice-pin- 

 natifid, with acute, toothed lobes. Veinlets branching from 

 the continuous midvein. The fertile part twice- or thrice- 

 pinnate. — Atl. Prov. 



5. B. matriearisefo'lium, Braun. Eesembling the pre- 

 ceding, but the sterile segment not quite sessile, somewhat 

 fleshy, pinnate to twice-pinnatifid, with obtuse lobes. Mid- 

 vein broken up into forking veinlets. — Damp woods, Atl. 

 Prov. chiefly. 



H- ^ Sterile segment long-stalked. 



6. B. terna'tum, Swartz. Very fleshy, 4-16 inches high, 

 sparingly hairy. Sterile segment attached near the base of 



