16 COPBLAND. 



3. Osmunda lancea Tlumb. 



Like 0. regalis var. japonica except for the sterile pinnules, which are 

 3.5 to I cm long, at most 1 mm broad, acute at both ends, serrulate only 



above the middle, and borne on stalks 1 to 3 nun long. 

 Japan. 



4. Osmunda cinnamomea L. 



Stipes densely tufted, 30 to 60 cm high, those of the fertile frond the 

 higher and more densely woolly: sterile frond 50 to 100 cm high, about 

 80 cm wide, abruptly contracted at the top: pinna' sessile, close. 10 to 

 13 cm long, about 25 mm broad; acuminate, cut almost to the costa : 

 lobes close, subfalcate. and traversed obliquely by the main vein in (typ- 

 ical ) American plants, more remote and straightcr in Japanese specimens, 

 oblong, Bubcoriaceous, glabrescent ; fertile frond 30-35 cm high, hardly 

 3 cm wide, dense, bipinnate, transient. 



Eastern Asia south to China; America. 



Var. fokienense Copel. 



Fronds less than 1 m high including stipe, about 10 cm broad, when 

 very young ciliate, especially in the sinuses, otherwise practically glabrous, 

 coriaceous: segments almost straight, oblong, rounded. 



Collected by Mr. Dunn in Fokien, Xo. 3703. 



f). Osmunda claytoniana L. 



Frond less woolly when young; pinnae obtuse; segments rounded, the 

 vein hardly oblique, texture herbaceous; fertile pinnae borne midway, with 

 upper and basal parts of frond sterile; otherwise like O. cinnamomea: 



The Himalayas and western China; eastern United States. 



6. Osmunda bromeliifolia (Presl) Copel. Philip. Journ. Sci. Bot. 2 (1907) 



147. 



Stipe 85-40 cm high, slender; frond including stipe usually less than 

 1 m high; pinna 1 borne at an acute angle, the larger ones up to '23 cm 

 long. T to !» mm broad, on stalks more than 1 cm long with acuminate 

 base and long-acuminate apex, sharply serrate except near the base with 

 teeth about 5 mm long and 0.5 to 1 mm deep, glabrous, hard-coriaceous, 

 veinlets mostly simple; fertile pinnse medial, considerably shorter than the 

 sterile, pinnate and the pinnules lobed. 



Luzon, Mindoro. 



7. Osmunda banksiifolia (Presl) Kuhn. 



Caudex sometimes 60 cm high and 15 cm thick, stipe stout; frond 

 including stipe 1.6 to 2 m high; pinna 1 about as long as in the preceding 

 species and more than twice as broad, short-stalked, acuminate, acute at 

 base, serrate with prominent teeth as long as in the preceding species 



