ICONES FILICUM SINICARUM 





93 



PLATE 46 



POLYPODIUM LEVEILLEI (Christ) C. Christ 



ensen 



POLYPODIACEAE 



POLYPODIUM LEVEILLEI (Christ) C. Chr. Ind. Suppl. 60 (1906-13). 



Selliguea lev eil lei Christ in Bull. Geogr. Bot. Mans (1906) 236. 



Rhizome wide-creeping, 3 mm. across, black, clothed with black sparse rigid 

 setaceous scales; stipe stramineous, solitary, 1-3 cm. apart, slender, sharply angular 

 below, 10-15 cm. long, with the base of frond gradually decurrent along it into a long 

 narrow wing on each side; frond about 20-30 cm. long, 2.2-4 cm - broad, or broader 

 at the middle, narrowly lanceolate, acuminate, suddenly narrowed near the base and 

 long decurrent along the stipe, margin crispato-undulate and obscurely crenate; costa 

 prominent on both sides, stramineous, lateral veins obliquely patent, extending to the 

 margin at acute angles, straight or subflexuose, about 30 on each side, the middle ones 

 I cm. apart, very slender, areolae between transverse veins about 5, oblong-rectangular 

 with simple clavate retrorsed included veinlets; sori running along the lateral veins from 

 the costa to the margin, very slender, brown texture flaccid, herbaceous, light green, and 

 glabrous on both surfaces. 



Distribution: Yunnan, Kweichow, Kwangsi. 



* 



A close ally to P. wrightii (HK.) Mett. which, however, has much narrower frond, 

 not abruptly narrowed towards the base and numerous copiously forked, included 

 veinlets. A pretty fern, discovered by Pere Cavalerie in Kweichow, 1904, growing on 



* 



moist banks of stream. 



Plate 46. Fig. 1. Habit sketch (natural size). 2. A portion of frond, showing venation and sori 

 (x 2). 3. Sporangium (x 145). 4. Scales from rhizome (x 30). 









