FERNS OF SOUTHERN CHINA. 
279 
segmentis sequentibus adnato-coalescentibus, triangulari-ovatis ; venulis 
liberis, mfimarum raniulis ad sinum protensis. 
Tai Mo Shan, S. China. 300 m. s. in. Matthew Ci, 1907. 
A species of the D. maximum group, well characterized by the very large and 
almost or quite entire segments and uniform, parallel sori of most of the frond. 
The small pinnae below the apex are in fructification as well as in form like those 
of D. maximum. 
Athyrium opacum (Don) Copel. comb. nov. 
Hemionitis opaca Don Prod. FI. Nepal. 1825. 
Matthew 38, on wet bowlders along streams. Kwangtung Province. 
This is already reported from China by Christ, Ac. Geog. Bot. (1906) 242, 
with the appropriate comment “Cette plante est un Diplazium pur sang, mais a 
indusie nul, coniine du reste il y en a plusieurs.” 
Athyrium decurrenti-alatum (Hooker) Copel. comb. nov. 
Gymnogramme decurrenti-alata Hooker Sp. Fil. 142, Plate 294- 
Dunn 3839, Lin Fa Shan, in stream, alt. 850 m. 
Hitherto known from Japan. This fern suggested Diplazium to Hooker, but 
devotion to formal characters has up to this time prevented its being placed with 
its evident relatives. 
Athyrium chlorophyllum (Baker) Copel. comb. nov. 
Asplenium chlorophyllum Baker, Journ. of Bot. (1885) 104. 
Kemp: Matthew 46, Tai Mo Shan, alt. 700 m. 
Known from Formosa and Penang, but not hitherto reported from China. 
Athyrium zeylanicum (Hook.) Milde. 
Dunn 3860, Yenping. 
Fee figures this species with a dilated sinus, which is wanting in Mr. Dunn’s 
plants, and states that the annulus is composed of 20 cells, while of these it has 
15 to 17 : otherwise they are identical. A. seylanicum is already known only from 
the interior of Ceylon. The discovery of this similar or identical plant at such 
a distance, but still in the range of Athyrium lanceum (Thunb.) Milde, suggests a 
close affinity of both pinnatifid plants and the entire one. 
Asplenium unilaterale Lam. 
Dunn 3843, the common Japanese form. 
Asplenium obscurum Bl. (A serraeforme Mett.) 
A form with very short sori, as figured by Mettenius, Asplenium, Plate IV f. 13, 
and pinnae acute, less cut away than in Mettenius’ figure or in Javan specimens. 
As in Javan specimens, the indusium often ruptures instead of separating from 
the frond at the “free” edge. 
Matthew 34, Kwangtung Prov., the roots in water. 
Hitherto known only from Java. 
Asplenium davallioides Hooker. 
Dunn 3861, 3925a. These specimens are not as finely cut as those from Japan 
and Korea. 
Asplenium Bodinieri Christ. 
Matthew 37, Kwangtung. Dr. Christ has kindly compared this with the type 
from Kouy Cheou. 
