TAKEDA—ASIATIC POLYPODIUMS. 291 
CHINA. Seckens (Wilford, n. 38) Macao (Harland). 
TONKIN. ‘‘ Mont Bavi, au dessus de Van-Maou vers 800 
_mét. d’altitude ”’ (Balansa, Jul. 1880). 
_B. ningpoense, (Bak.) Takeda. 17-25 
Syn. :—P. ningpoense, Bak. in Ann. Bot. v, p. 474 (1891). 
Differt a typo solum frondibus sessilibus. 
CuinA. Chekiang: Ningpo Mountains, on trunks of trees 
in deep shady glens (Hancock, n. 24); Kiangsi: Kiukiang 
(Shearer, 1873). “s 
This variety, which was originally described as a distinct 
species, differs from the type merely by the strictly sessile frond ; 
even in the type the length of the stipe varies to a certain 
extent. 
120% or, P. subhastatum, Bak. 
This interesting fern was described from China first by Baker, 
in 1889, under the name of P. subhastatum,* and again by Christ, 
in 1902, as P. hederaceum.; When describing his fern, Baker 
pointed out that the species comes ‘‘ midway between P. ros- 
tratum and P. Spectrum.” P. subhastatum has, however, no 
connexion with these two species whatever, but is, in fact, 
closely related to P. Buergerianum. Also his description of sori 
“placed in a single row midway between the midrib and margin 
in the upper part of the frond ”’ requires correction. Asa matter 
of fact, the sori are not regularly arranged as described, but are 
scattered sometimes over the whole under-surface of the frond. 
Christ rightly compares his P. hederaceum with P. Buergerianum, 
but from his statements I gather that the specimens of P. 
Buergerianum he had at his disposal must have been very poor, 
hardly representing the typical form, while his specimen from 
Higashiyama, Kydéto, appears to have been not the true P. 
Buergerianum, but a variety of the present species, known to 
the Japanese botanists as P. Buergerianum. 
Franchet and Savatier cite on the authority of Ito Keiske, 
the Japanese name “ Yanoneshida”’ under P. Buergerianum, 
Miq. enumerated in their publication.{ This is certainly not 
correct; but how this mistake originated is not clear. How- 
ever, the same mistake had been repeated by Makino § ; this gave 
occasion to Japanese botanists to appfy the wrong name to 
the fern with the local name of ‘‘ Yanoneshida.”’ 
As has been said above, P. subhasiatum is allied to P. Buer- 
* Journ. Bot. 1889, p. 17. 
t Bull. Acad. Intern. Geogr. Bot. xi, p. 215 (1902). 
t ieam . Pl. Japon. ii, p. 245 Peer ae 
§ Toky6 Bot. Mag. 1896, p. 180; Ej. Phan. et Pter. Japon. Ic. Ill. sub tab. 
899). 
