ICONES FILICUM SINICARUM 
IPILAMIND, act 
OLEANDRA UNDULATA (Willd.) Ching 
POLYPODIACEZ: 
OLEANDRA UNDULATA (Will.) Ching, Lingnan Sci. Journ. 12: 565 (1933); C. Chr. Ind. Fil. 
Suppl. III. 132 (1934). 
Polypodium undulatum Willd. Sp. 5: 155 (18r0). 
Oleandra Cumingit var. longipes Hk. Sp. Fil. 4: 158 (1860); Bedd. Ferns Brit. Ind. t. 135. 
(1865); C. Chr. Contr. U. S. Nat. Herb. 26: 290 (1931). 
Oleandra Cumingtt (non J. Sm.) Hk. et Bak. Syn. Fil. 303 (1868); Clarke, Trans. Linn. IT. Bot. 
1: 542 (1880); Bedd. Handb. Ferns Brit. Ind. 288 (1883); C. Chr. Ind. Fil. 466 (1905), 
pro parte. 
Oleandra pubescens Cop, Univ. Calif. Publ. Bot. 12: 397 pl. 52a (1931) 
Rhizome thick, wide-creeping, densely scaly; scales linear-subulate, ferruginous- 
brown, imbricate, margin sparcely viilose-fimbriate; frond 1-3 cm apart, stipe 13-20 cm 
long, dark straminous, naked, articulated at 4-6 cm above the base, lamina broadly 
lanceolate, 20-26 cm long, 3-4.5 cm broad at the lower middle, being the broadest part, 
acuminate, base cuneate, shortly decurrent, margin naked, repando-undulate; texture thick 
chartaceous, densely pubescent on the under side (hairs on costa spreading), glabrous and 
subnitid above; veinlets fine, distinct, forked from base; sori irregularly 1-rowed some 
distance from costa, indusium reniform, large, dark brown, hirsute. 
Hainan Island: Chim Shan, Fan Maan Tsuen, F. A. McClure 20061, May 4-20, 
1932; Ue Lung Shan, Chang-kiang Hsien, S. K. Lau 3108, Jan. 9, 1934; Ka Chik Shan, 
ibid., S. K. Law 1490, April 8, 1933. 
Siam: Doi Chang, Evyl Smith 1072 (type of O. pubescens); Kao Sabap, Eryl 
Smith 531, June 29, 1931. 
Formosa: Mt. Arisan, Faurie 483, May, 1914. 
Burma: Keng Teng Territory, J. F. Rock 2026, 2026A. Assam: Griffith. 
India orientalis: Tranquebar, Klein 887 (1800, type); Helfer, Meebold, Wight. 
Also French Indo-China. 
A close relative of O. Cumingii J. Sm., from which it can easily be distinguished 
by its decidedly longer stipe with articulation at 3-6 cm above base, broadly lanceolate 
(broadest at the lower middle) lamina of thicker texture, with repando-undulate margin 
and cuneate, or shortly decurrent base, more densely pubescent under and glabrous 
upper, surfaces. 
Plate 171. Fig. 1. Habit sketch (natural size). 2. Portion of lamina, showing venation, sori 
and strigose hairy under side (x4). 3. Scale from rhizome (x 16). 4. Hairs from under side of 
lamina (x 50). 5. Cross section of rhizome, showing the arrangement of steles(x 10). 
