PHILIPPINE SPECIES OF ATHYRIUM. 
299 
This is generally, and, I believe, correctly construed as Diplazium proliferum 
(Lam.) Thouars, and I should have accepted that specific name except that it 
was occupied in Athyrium, before Milde used it; decussatum is likewise pre- 
occupied. The next possibly applicable name, in age, is Diplazium Swartzii 
Bl. Enumeratio 191. In the diagnostic characters of D. Swartzii and D. accedens 
Bl. Eimm. 192, as given by Blume, the Philippine plant exactly fits the latter; 
for this reason and because the latter name is already in use in Athyrium for 
this plant, I have thought it unwise to take up and transfer the name Swartzii. 
GROUP OF A. FRAXINIFOLIUM. 
40. Athyrium palauanense Copel. comb. nova. Diplazium palauanense Copel. 
in Perkins’ Fragmenta (1905) 186. 
Palauan, Merrill 71/6: Mindoro, Merrill 5915. 
This species serves to bridge the gap between the groups of A. pinnatum and 
A. fraxinifolium. 
Near this, but distinct, is Williams 21/65, from Mount Apo, Mindanao. It 
is thinner in texture, the rachis is pubescent and proliferous at the upper end, 
pinnae broader at the base, the margin more regular, and the sori like those of 
A. pallidum. , rather than like those of A. pinnatum, as are those of A. palauanense. 
41. Athyrium fraxinifolium (Presl) Milde. 
Diplazium bantamense Blume, Enumeratio (1828) 190. For other synonyms, 
see Christensen. 
Luzon, Cuming 276; Benguet, Elmer 6222; Rizal, Merrill 1606, Bur. Sci. 2626 
Ramos: Negros, Copeland 60, SO, Whitford 1598: Leyte, Cuming 305: Mindanao, 
Surigao, Bolster 309; San Ramon, Copeland 1656; Mount Ajx>, Copeland 11/90: 
Balabac, Steere. 
Malaya, India, Japan. 
I have the long tried to maintain bantamense and fraxinifolium as distinct, but 
am now satisfied that it should not be done. There is every intermediate step 
between specimens with the veins all free, and those which have them regularly, 
if not very copiously uniting. It also often happens that on different parts of a 
single plant, and, in fact, of a single frond, as is true of Cuming 305, there are 
some areas where the -veins anastomose regularly, and others where they are very 
nearly all free. The pinnae are sometimes entire, sometimes serrulate to the apex. 
I have not been able to detect any correlation between margin and venation, in 
this spcies. 
42. Athyrium Cumingii (Presl) Milde. 
Luzon, Cuming 116; Mount Banajao, Whitford 1110, Elmer 2987, 9030; 
Mindoro, Merrill 5912, For. Bur. 12232 Rosenbluth. 
Celebes, teste Christ, Ann. Jard. Buitenz. 15 (1897) 122. 
43. Athyrium tabacinum Copel. comb. nova. Diplazium tabacinum Copel. in 
Philip. Journ. Sci. 1 (1906) Suppl. 149. 
Mount Apo, Copeland 11/90, Williams 2510: Horn of Negros, Elmer 9717 (?) : 
Mindoro, For. Bur. 9925 Merritt, sterile. 
44. Athyrium pariens Copel. comb. nova. Callipteris pariens Copel. in Perkins’ 
Fragmenta (1905) 186. 
Mount Apo, Copeland 1287, 11/91/: Horn of Negros, Elmer 9716. 
Although this is umpiestionably very near the preceding and the two grow 
mixed in both places where they have been found, there are other differences 
evident enough so that without noticing the venation Elmer kept the two separate 
in the field. And so far as experience goes, the venation characters of both are 
constant. 
