ICONES FILICUM SINICARUM 



61 



PLATE 31. 



ADIANTUM GREENII Ching (fig. 1-5) 



POLYPODIACEAE 



ADIANTUIVT GREENII Ching in Sinensia 1: 8 (1929). 



Rhizome short, profusely fibrous-rooted, scales blackish, dense, ascending, linear- 

 subulate; stipes 2-3 cm. long, caespitose-fasciculate, dark ebeneous, naked, capillaceous 



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and so is the rachis; fronds 1.5-3.5 cm. long, rarely longer, about 2 cm. broad, simply 

 pinnate; pinnae 3-4, someimes 2 only, 6-8 mm. apart, petiolate (petioles ij mm. long), 

 erect-patent, the terminal one with a petiole 5-7 mm. long, articulate at base, leaving a 



* 



persistent petiole upon falling, broadly short-triangular, rarely oblong-obovate, rotundo- 

 cuneate and entire at base, truncate and very obscurely undulate on the broad truncate 

 apex, 6-9 mm. long, 7-10 mm. broad; veins 4-5, flabellate from the base, each again 3-5 

 forked, veinlets fine, distinct; sori large, solitary, placed at the apex, indusium transverse- 

 ly oblong-reniform, 4-6 mm. long, 1.3 mm. broad, dark brown, attached to a broad 

 shallow sinus; texture subcoriaceous, translucent, bluish on both sides. 



Distribution: Kwangsi. 



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Plate 31. Fig. I. Habit sketch (natural size). 2. A pinna, showing venation and sorus (x 3). 

 3. Scales from rhizome (x 48). 4. Sporangia (x 100). 5. Dorsal side of inducium, showing attachment 



of sori (x 10). 



