pdf 31 MB - BSBI Archive

266 TONQtIN FERNS.
long, about a foot broad, bipiunatifid, with a broad wing to the main
rachis reaching nearly or quite down to the base. Lower pinnas
the largest, deltoid, much produced on the lower side; central pinnae
lanceolate, equilateral, 1^-2 in. broad, deeply pinnatifid, with ovate
or ovate-lanceolate arcuate secondary segments. Veins anastomosing
copiously in hexagonal areolae. Sori copious, scattered,
minute, irregular in form. Indusium minute, glabrous, fugacious.
In habit between cicutariuin and decurrens.
87. N. variolosum Baker.
53. N. decurrens Baker.
21, 49, 82, 85, 1800. N. cicutarlmi Baker, forms.
37. Nephrolepls cordifolia Presl.
48. N. exaltata Schott.
1809, 1810. iV. acuta Presl.
1823. N. ramosa Moore.
149. Olea7idra Cuvmujii J. Smith.
1868. Vohjpodmm punctatum Tliunb.
1885. P. uruphjllum Wall, var. uniseriale. — Sori uniserial
between the main veins.
(64^=), 47. Polypodium (Goniopteris) megacuspe, n. sp.
Kootstock wide-creeping, ^ in. diam. ; palese small, lanceolate,
dense, membranous, brown. Stipes distant, naked, stramineous,
15-18 in. long. Frond oblong, simply pinnate, a foot long, half as
broad, thin, green and glabrous on both surfaces ; rachis naked,
stramineous. Pinnee about 11, sessile, entire, oblong, with a very
large cusp, 4-5 in. long, 1^-1^ in. broad. Main veins arcuate,
very distmct, parallel, about ^ in. apart. Sori 10-12 between the
midrib and margin, uniserial between the main veins.—Near P.
urophyllum
1878. P. suhdifjitatum Blume.
1822. P. ammiimi Wall.
1936. P. rostratuin Hook.
1935. P. superjiciale Blume.
(305"), 148. Polypodium (Phymaiodes) tonkinense, n. sp.—
Eootstock slender, short-creeping ; palete lanceolate, dark brown.
Stipes scarcely any. Frond oblanceolate, subcoriaceous, glabrous,
entire, 5-6 in. long, under an inch broad above the middle,
narrowed thence gradually to the base. Veins in copious hexagonal
areolae with free included veinlets. Sori copious, scattered irregularly,
confined to the upper half or third of the frond.—Near the Philippine
1'. tenuilosc, Kunze.
1926. P. mewhranaccum Don.
1949. P. Pkymatodes L.
1880. P. dilatatum Wall.
140. P. Fortunei Kunze.
161, 162. P. adiiasccns Sw.
1931, 1933. P. varium (Blume).
1930. P. flncci(jerum Mett.
156, 157. P. acrustichoides Forst.
1882. (Tymnoqramme javanica Blume.
65, 6Q. G. Wriyhtii Hook.