

ICONES FILICUM SINICARUM 



67 



PLATE 33. 



t 



PTERIS HUI Chin 



S 



POLYPODIACEAE 



PTERIS HUI Ching in Sinensia 1 : 9 (1929). 



Rhizome very short, upright ; scales linear-subulate, dark brown, rather thick, 

 2-3 mm. long ; stipes tufted, 4-8 together, naked, straminous, flattend upon drying, 

 broadly channelled above, 6-17 cm. long, 2 mm. broad ; fronds short deltoid, uniform, 

 bipinnate, 5-10 cm. long, a little less broad, glabrous on both sides ;• lateral pinnae 1-2 

 pairs, opposite, petiolate ; the lower pair much the largest, with petioles 5-10 mm. 



* - * 



long, 2-3-partite, pinnules oblong-lanceolate to oblong-ovatef 2.5-6 cm. long, 1.5-2 cm. 

 broad at the middle, shortly petiolate or subsessile, distinctly inciso-dentate on the 

 upper sterile portion ; the middle pair (if there any) simple, shortly petiolate or 

 subsessile, of same shape and size as the lower ones ; the terminal pinna always 

 simple, of same shape, but much longer (-9 cm.) petiolate ; rachis staminous, naked, 

 wingless ; texture thick, stiff, coriaceous, shining light green (when living) ; midrib 

 prominently raised below, rather flattened above, lateral veins numerous, distinctly 

 raised above, patent, 1-1.5 nun. apart, ended near the base of the teeth, never in the 

 mucron ; sori dark brown, linear, continuous from the base to within a short distance 

 from the tip, or only up to the middle of the margin, or sometimes only a short way 

 upward from the base, indusium narrow, rather thick, rigid, dark gray, continuous. 



Distribution : Kwangsi. 





Plate 33. Habit sketch (natural size). 



