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PHILIPPINE URTICACEAE. 467 
Laportea Gaudich., 1826, is antedated by Urticastrum Fabr., 1759, the 
former one of the nomina conservanda of the Vienna Congress. 
Fleurya Gaudich., 1826, has an alleged synonym in Kermula Noronha, 
1790: no combinations have been made under the latter name. 
Pilea Lindl., 1821, is antedated by Adicea Raf., 1815: nomen con- 
servandum., 
Pellionia Gaudich., 1826, is said to be synonymous with Polychroa 
Lour., 1790. 
Elatostema J. R. & G. Forster, 1776, is typified by the species now 
known as Procris pedunculata (Forst.) Wedd., which, under another 
specific name, is also the type of Procris. 
Memorialis Ham. in Wall. Cat. was a manuscript name, taken up as a 
sectional name by Bennett in 1838, and given generic rank by Weddell 
in 1857. If it be regarded as generically distinct from Pouzolzia, the 
oldest valid name is Gonostegia Turez., 1846, Hyrtanandra Miq., 1851, 
also antedating Memorialis. ; 
Distemon Wedd., 1857, is a homonym of Distemon Bouché, 1844. The 
latter is reduced to Canna, leaving Distemon valid for the Urticaceous 
genus under the Vienna Code. 
Villebrunea Gaudich., Bonite, was first published by Weddell in 1854; 
Gaudichaud had two species, the first retained by Weddell in the genus, 
the second subsequently transferred by him to Urera, though he continued 
to cite both plates as belonging to the genus. Weddell, in 1854, had these 
two and two others, one subsequently retained, the other based on a species 
of Blume’s, which is said to belong to a different family. Oreocnide 
Miquel, 1851, is monogeneric, and as the first published name is here used. 
Debregeasia Gaudich., Bonite, taken up by Weddell, 1857, is generally 
said to have two older synonyms. JMorocarpus Sieb. & Guce., 1846, is 
here rejected as a homonym of Morocarpus Adans., 1763, but as the 
latter is considered a synonym, the name would be available for use 
instead of Debregeasia under the Vienna Code. Leucocnide Miq., 1851, 
had 5 species, the two first distinct species of Leucosyke, the other three 
reduced to one by Weddell under Debregeasia. It is here considered 
to be typified by Leucosyke capitellata (Poir.) Wedd., and Debregeasia 
is left as the oldest valid name. 
Leucosyke Zoll. & Mor., 1845 or 1846, was eventually maintained by 
Weddell, although he had taken up, in 1854, JJissiessya Gaudich., Bonite. 
The two departures from ordinary usage in this paper are the 
substitution of Oreocnide for Villebrunea, and of Gonostegia for Memo- 
rialis. 
Difficulties with specific limits occur at every turn, and become acute 
owing to the tendency in many of the genera for the forms to cluster 
around some species, such as Boehmeria platyphylla Don, Elatostema 
sessile (Forst.) Wedd., and Leucosyke capitellata (Poir.) Wedd.: of all 
