ICONES FILICUM SINICARUM 
PLATE 154 
DIPTERIS CHINENSIS Christ 
DIPTERIDACE 
DIPTERIS CHINENSIS Christ, Bull. Acad. Géogr. Bot. (1904) 104 cum fig. et tab.; C. Chr. Ind. 
Fil. 242 (1995); Ching, Bull. Dept. Biol. Coll. Sci. Sun Yatsen Univ. No. 6: 23 (1933). 
Dipteris Horsfieldii Christ. (non Bedd. 1869), Bull. Herb. Boiss. 6: 880 (1898). 
Dipteris conjugata Hand.-Mzt. (non Reinw. 1924), Sym. Sin. 6: 28 (1929); Wu, Polyp. Yaoshan, in 
Bot. Dept. Biol. Coll. Sci. Sun Yatsen Univ. No. 3: 94 t. 38 (1932). 
Rhizome wide-creeping, woody, densely scaly; scales atro-brown, rigid, setaceous, 
linear-subulate, nitid, appressed; frond far apart, stipe 30-60 cm long, dark straminous, 
glabrous above base, woody, rounded below, broadly grooved upward on the upper side, 
lamina 20-30 cm high, 30-60 cm broad, bipartite into nearly equal fan-shaped halves, 
each again cleft into 4-5 broad acuminate lobes, 5-8 cm broad, the exterior one divided to 
three-quarters of the way down. the middle one or two, less deep, and the interior one, 
only one-third way down, each lobe may be once forked with grossly serrated margin; 
texture crass herbaceous or subcoriaceous, turning brownish when dried; underside green 
or slightly bluish and with some dark brown articulated deciduous hairs along veins; main 
veins prominent, dichotomously branched, connected by finer transversed ones, with 
intermediate veiniets anastomosing copiously into hexagonal areolz with simple or forked 
included veinlets; sori small, punctiform, superficial, campital, scattered, exindusiate 
sporangia intermixed with atro-brown cup-shaped stalked paraphyses. 
Kweichow: Pin-fa Gavalerie 7641, 341 (type); Cheug-feng, Y. Tsiang 4706; without 
locality, Esquirol 3139, 667. Kwangsi: Yao shan, S. S. Sin 647, June 29, 1928; Tseung 
Hsien, C. Wang 39494, June 22, 1936; Lu-chen Hsien, Miu Shan, R. C. Chiug 6140. Yun- 
nan: Mengtze, Hancock 213; A, Henry 9041, 9041A; Tzi-tzo-ti, Forrest 27693 (1925); Ping- 
pien Hsien, H. S. Tsai 55420, 60250, in thickets. Tibet-Burmese border; H. Handel- 
Mazzetti 9347. 
Upper Burma: Htawgaw, Forrest 24613. 
This distinct endemic species can be easily distinguished from the tropical Asiatic 
D. conjugata Reinw. by much less divided leaves with fewer and broader ultimate seg- 
ments, green or slightly bluish under surface and not clavate but cup-shaped paraphyses 
in sorus. 
y 
Plate 154. Fig. 1. Habit sketch (natural size). 2. Portion of lamina, showing venation and 
sori (x 5). 3. Sporangium (x 150). 4. Spores (x 150). 5. Scale from rhizome (x 40). 6. Gross 
section of rhizome, showing solenostele (x 5). 7. Hairs from veins on the under side of leaf (x 30). 8. 
Paraphyses in sorus (x 150). 
