ICONES FILICUM SINICARUM 
PLATE 211 
ADIANTUM SINICUM Ching 
ADIANTACEZ 
ADIANTUM SINICUM Ching in Bull. Fan Mem. Inst. Biol. New Series 1: 267. 1949; in Acta 
Phytotax. Sinica 6: 315. 1957. 
Rhizome short, erect, densely radicose, scales linear-subulate, shining blackish with narrow brown 
margin, densely imbricate; fronds caespitose, erect, rigid, stipe 5-12 cm long, 1.5 mm across, dark castaneous, 
shining, densely clothed in reddish articulate setaceous spreading long hairs throughout the rachis, mixed. 
in the basal part with similar scales as those on rhizome, lamina 12-27 cm long, 1.7-2.5 cm broad, linear- 
lanceolate, gradually attenuate towards the bluntish apex, base scarcely narrowed, simply pinnate; pinnae 
24-32 pairs, patent, close or subpectinate, sessile, the lowest ones scarcely reduced, more or less deflexed, the 
middle pinnae 1-15 cm long, 5-6 mm broad at base, dimidiate, cut straight below, anterior base truncate, 
apex roundish, outer edge slightly curved, shallowly lobato-incised into 4-5 broad lobules, the terminal pinna 
flabellate, shallowly trilobed, larger than those immediately below; texture thickly herbaceous, dry greenish, 
both sides rather copiously hirsute with setaceous stout hairs of paler color; veins fine but distinct on both 
sides, flabellately forked with about 8 veinlets to each lobule; sori 3-4 to each pinna, or | (rarely 2) to 
each lobule, orbicular or transversely oblong, leaving apical part of pinnae sterile, indusium dark-brown, 
firm, similarly hirsute as the leaf surfaces. 
Northwestern Yunnan: Whang-chia-ping, Tang-chuan Hsien, north of Tali, R. C. Ching 24897, 
September 12, 1940, on the edge of rocks, alt. 1500 m. 
A remarkable species, sharing the general habit with Adiantum Edgeworthi Hook., but in the type 
of hairs it closely resembles A. caudatum L, from which it can be easily distinguished by the fronds ter- 
minated by a flabellate pinna, the much less divided pinnae, the blackish shining scales with light-colored 
margin and by the longer, coarser and spreading reddish setose hairs along the stipe and rachis. 
Plate 211. 1. Habit sketch (natural size). 2. Pinna, soriferous (X4). 3. Pinna, sterile (X4). 4. Scale 
from the base of stipe (X30). 5. Hairs from the stipe (X100). 6. Hairs from the under side of pinna (X 100). 
7-8. Sporangium with spores (X100). 
