FERNS OF SOUTHERN CHINA. 279 
segmentis sequentibus adnato-eoalescentibus, triangnlari-ovatis; veniilis 
liberis, infimanim raiiiulis ad sinuiii protensis. 
Tai Mo Shan, S. Cliina. 300 m. s. m. Matthew 6, 1907. 
A species of the D. maximum group, well cluiructerized by the very large and 
almost or quite entire segments and uniform, parallel sori of most of the frond. 
The small pinnte 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. Fl. Nepal. 1825. 
Matthew 38, on wet bowlders along streams. Kwangtung Province. 
This is already- reported from China by Christ, Ac. Oeog. Pot. (1906) 242, 
with the appropriate comment "Cette plante est un Diplazium pur sang, mais fl. 
indusie nul, comme du reste il y en a plusieurs." 
Athyrium decurrenti-alatum (Hooker) Copel. comb. nov. 
Gymnogramme decurrenti-alata Hooker H\i. Fil. 142, Plate 20^, 
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 (Paker) Copel. comb. nov. 
Aspleniiim chlorophyllum Paker, Journ. of Bot. (1885) 104. 
Kemp: Matthew J/O, Tai Mo Shan, alt. 7G0 m. 
Known from Formosa and Peuang, but not hitherto reported from China. 
Athyrium zeylanicum (Hook.) Milde. 
Dunn 3860, Yenping. 
F6e figures this species with a dilated sinus, which is wanting in Mr. Dunn's 
plants, and states that ^he annulus is composed of 20 cells, while of these it has 
15 to 17: otherwise they are identical. A. zeylanicum 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 afTmity of both pinnatifid plants and the entire one, 
Asplenium unilaterale Lant. 
Dunn 3S.'t3, the common Japanese form. 
Asplenium obscurum PI. {A serraeform e Mett.) 
A form with very short sori, as figured by Metlenius, Asplenium, Plate IV f. 13, 
and piimoe acute, less cut away than in Mettenius' figure or in Javan specimens. 
As in Javan specimens, the indu^ium often ruptures instead of separating from 
the frond at the "free" edge. 
Matthew 3/f, 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 Bodinleri Christ. 
Mattl^w 37, Kwangtiuig. Dr. Christ has kindly compared this with the type 
from Kouy Cbeon. 
