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THE NOMENCLATURE OF POTAMOGETONS. 299
Potamoqcton javanicus Hasskarl, Act. Soc. Ner. i. p. 2G (185G).
P. tenn'icanUs F. Mueller, Frag. Pliyt. Aust. i. DO & 244 (1858).
P. parcifolia Buchenau, Eeliq. Kuteubcrg. pp. 32-33 (1880).
(Dr. Schinz would add P. Huillensis Wehv., but I have myself not
seen a fruiting specimen of this.)
P. ht/bridus / Hooker (uon Michx.), Khasia, Herb. Kew !
Distribution :— India ! China ! Java ! Madagascar ! Ni^er
Country ! Australia !
Miquel (Illust. Fl. Arch. Ind. p. 4G, 1871) remarks on tho
probability of P. tenidadilis Muell. he'iug j((V(niici(s Hassk., and notes
that the same species is found in Japan (Prolusio. Fl. Japon. fasc. 7
p. 325, 1867). Mr. Bentham, Fl. Austr. vii. 171 (1878), remarks
that Mueller had considej:e([ javanicus and tenuicauUs the same, but,
in the absence of specimens of the Javan species, left it an open
question. The Rev. T. Morong (Torrey Bulletin, 188G, p. 158)
identified the Torrey herb., Formosan, and Indian plants as
tenuiraxdis Muell. Dr. Buchenau, when describing P. jxirrifolia,
does not mention the Australian plant ; he probably had not access
to specimens of it, or he would have seen they were the same.
P.
18G0 !
FtLiFOLius
—
R. A. Philippi, Florula Atacamensis, No. 857,
A specimen of this, kindly sent me by Prof. Philippi,
proves the plant to be a Ruppia, which I hope he will name Pi.
(ttacaiiwnsis.
P. FLABELLATus Babiugton, Man. Brit. Bot. ed. B, p. 343 (1851).
—Mr. Fryer has taken f>good deal of trouble to find out what was
really meant by this plant, and the conclusion he has come to is
that it is a more abundant plant tlian P. jn-ctinatus type. From
being mixed up with pectinatas forms by nearly every botanist,
before Mr. Fryer's careful researches, it has been doubtful to what
extent the name referred to a local (or perhaps endemic) form ;
lience certain comparison with continental forms was hardly possi])le.
])ut the plant is contained in Willdenow's Herbarium at Berlin,,
No. 3204, f. 5 ! and this is the earliest I have as yet been able to^
trace it to ; this is /'. intcrntptm Kitaibel ap. Schultes, Oest. Flora,
ed. 2, p. 328 (1814), the specimens being named by Kitaibel him-
self; the label runs thus:— "P. subvcrticillatus := P. intrrruptu.^
mihi in stagnis salsis, Kitaibel." If considered a variety of
pcctinatun L., the earliest name I can find is V. pcctinalus var.
dichotuinus Wallroth, Sched. Crit. p. G8 (1822). Dr. Kcruer,
recognising the dii'forence between it and pectijiatns, named it P.
junci/uliunl (cfr. Tisehus, ]3ot. Notiscr, 1884, pp. 1)1-92). So Prof.
Babington's name must become a synonym. Mr. Druce, in his
' Flora of Oxfordshire,' has " /'. junceus K." I suppose he means
jmicijhliiis by this ; ])ut it Avas a pity to introduce another needless
synonym, as Babington's name is far older than Kcrner's.
P. GUAcius Wolfgang, ap. Roem. et Hchultes, Sys. Vcg.
Mant, 3, p. 355, 1827. — " Siberia oriental! Merck in herb.
Steven," Wolf. I.e. "Two specimens from Wolfgang are in the
herbarium at Helsingfors," Dr. Kiblman in litt. Dr. Kihlraan has
named this plant /'. Wnlfi/aniiii under the mistaken supposition that
Fries' P. ijracilis (Nov. Fl. Suec. ed. 2, p. 50, 1828) was an earlier