ICONES FILICUM SINICARUM 
PEALE 212 
ADIANTUM JUXTAPOSITUM Ching 
ADIANTACE 
ADIANTUM JUXTAPOSITUM Ching in Acta Phytotax. Sinica 6: 312. 1957. 
Rhizome short, erect, densely radicose, sparsely clothed in dark-brown lanceolate firm scales; fronds 
caespitose, upright, numerous together, 15-18 cm long including stipe, which is 5-7 cm long, stout, casta- 
neous, shining and glabrous, lamina 10-12 cm long, about 3 cm broad, simply impari-pinnate; pinnae 7-9 
pairs, opposite or subopposite upward, oblique-patent, 2-3 cm apart, petiolate (petiole 3 mm long), 1 cm 
long, 1.2-1.5 cm broad, smaller towards apex, orbicular-triangular with round, entire or slightly wavy outer 
edge, the terminal pinna smaller, all articulate at the base; Zexture subcoriaceous, green above, bluish below; 
veins flabellately forked, rather distinct on both sides; indusia 4-6 to each pinna, suborbicular or trans- 
versely reniform, blackish, coriaceous, persistent. 
Northern Fukien: _ Sih-Ya-Ling, on the border of Chekiang, growing in dry rock crevices, rare. 
A distinct endemic species, proximately related to Adiantum Chienii Ching (see Ching, Ic. Fil. Sin, 4: 
t. 159) from Kwangtung Province, but differing in the broader fan-shaped pinnae, which are broader than 
long and in having more sori to each pinnae with suborbicular or transversely reniform indusia. In general 
habit, this species resembles Adiantum capillus-junonis Rupr. more than any others, yet differing in upright 
fronds of much stouter build with much thicker stipe and subcoriaceous leaf texture, shorter (orbicular 
or transversely reniform) indusia and in not prolongated and rooting apex of fronds. 
Plate 212. 1. Habit sketch (natural size). 2. Pinna, showing venation and sori (xX 3). 3. Scale from the 
thizome (X 40). 4-5. Sporangium with spores (X 100). 
