ICONES FILICUM SINICARUM 



59 



PLATE 30. 



PLAGIOGYRIA HENRYI Christ 





POLYPODIACEAE 



PLAGIOGYRIA HENRYI Christ in Bull. Boiss. 7:8 (1899); Diels in Nat. Pfl. Fatn. 1. 4 282; 



C. Chr. Ind 496 (1906). 



Lomaria decurrens Baker in Kew Bull. (1906) 9. 



1 



Caudex erect, naked; stipes tufted, castaneous, base incrassate, sharply trigonous, 

 those of the sterile frond 10-13 cm - l° n g» those of the fertile frond 30-37 cm. long; 

 sterile frond oblanceolate, thin membranaceous, simply pinnate, 37-45 cm. long, 6-10 cm. 

 broad at the middle, gradually attenuate towards the base with the lowest 3 pairs re- 

 duced to distinct and broadly adnate auricles, the central pinnae lanceolate, conferted 

 with very narrow sharp sinuses, 3-5 cm. long, 8-12 mm. broad at the base, which is 



■ 



broadly adnate, margin prominently serrate towards the apex and obscurely crenate 

 below; veins lax, distinct, mostly once-forked or simple; fertile frond about 7 cm. broad, 

 pinnae far apart, 4 cm. long, 3-4 mm. broad, reduced towards the base, linear, distinct- 

 ly stalked and beaked at the apices. 



> 



Distribution: Yunnan, Anwhei, Chekiang, and also Annam. 



Distinguished by its long oblanceolate frond, gradually attenuate downward with 

 the lower pinnae reduced to distinct auricles and by its stalked fertile pinnae distinctly 

 beaked at the apex. 



Plate 30. Fig. 1 Habit sketch (natural size). 2. A sterile pinna, showing venation, (x 2) 3. 

 A cross section of fertile pinna, showing attachment of sori (x 27) 4. A sporangium (X76). 5. 

 Two spores (x 145). 



