ICONES FILICUM SINICARUM 
PLATE 150 
ARTHROMERIS LUNGTAUENSIS Ching 
POLYPODIACEA 
ARTHROMERIS LUNGTAUENSIS Ching, Contr. Inst. Bot. Nat. Acad. Peiping 2: 98 
(1933). 
Polypodium lungtauense Ching in C. Chr. Ind. Fil. Suppl. III. 152 (1934). 
Rhizome wide-creeping, 4-5 mm thick, terete, atratous; scales dense, ovate, 
acuminate, grayish-brown with scarious margin; frond far apart, stipe 3-10 cm 
long, dark straminous, terete, slender, naked, lamina oblong or deltoid, 7-30 cm 
long, impari-pinnate; pinne 1-3-8-jugate, the terminal pinnew similar to the lateral 
ones, which are patent, sessile, 6-10-16 cm long, 2-3 cm broad in the middle, 
gradually acuminate, base equal, cordate, subamplexicaulous, margin entire with 
a cartilaginous line all around; lateral veins prominent, 4 mm apart, obliquely 
patent, transversal veinlets 4-6 between costa and margin, intervening veinlets 
anastomosing with included veinlets; teztwre chartaceous, brownish when dried, 
both sides moderately villose; sov rather small, rounded, dark brown, bi-seriate, 
of 3-4 each between main veins, glabrous, with a few protruding hairs from vein- 
lets underneath. 
Kwangtung: Lungtau Shan, Iu village, To Kang Ping 12430 ex herb. Ling- 
nan Univ., June 7, 1924: Tsungfa-Lungmoon Districts, Tsang Wet Tak 20508, May 
18, 1932; Yiiyuan, S. P. Ko 53074, July 18, 1933; Lohfau Shan, C. Ford 14 (1883); 
C. O. Levine & McClure 6828; Levine 1545; B. C. Henry 22210 in herb. Hance, May, 
1863. 
A critical species, which differs from A. himalayensis (Hk.) in not densely 
pubescent surfaces of pinne of a different outline with a narrowly cartilaginous 
margin; from A. Lehmanni (Mett.) it differs in sparcely villose leaf surfaces and 
much smaller size. 
Plate 150. Fig. 1. Habit sketch (natural size). 2-3. The same (natural size). 4. Portion of pinna, 
showing venation and sori (x 5). 5. Scale from rhizome (x 24). 6. Hair from lamina (x 60). 
