PHILIPPINE URTICACEAE. 
473 
and four more by the middle of May, there would seem to be no great 
improbability in the remaining four having been published in the same 
year, 1856. There can be no doubt that the first part of the monograph 
was published in 1856, hut it still seems to me probable that the con- 
clusion did not appear till the following year. Hooker’s statement is 
rather positive, and it is possible that the Linnean Society record may 
have referred to part of the work only. Miquel, also, definitely states in 
paragraphs where priority was being discussed, that certain portions, 
Debregeasia and Villebrunea , which are after page 400, were published 
in 1857. 9 
To Prof. Lecomte and Dr. Gagnepain, of the Museum d’Histoire 
ISTaturelle, Paris, and to Mr. W. W. Smith, of the Eoyal Botanic Gardens, 
Culcutta, I am greatly indebted for comparisons between recent Philip- 
pine collections and the types in those institutions and for copies from 
publications not available here to Lieut.-Col. D. Prain, Director of the 
Eoyal Botanic Gardens, Kew, and to Dr. 1ST. L. Britton, Dr. M. A. Howe, 
Mr. Percy Wilson, and Miss Hilma Johnson, of the New York Botanical 
Garden. 
KEY TO THE PHILIPPINE GENERA OE URTICACEAE. 
Plants with stinging hairs; perianth-segments of pistillate flowers 4, always free 
from the ovary. 
Leaves opposite; stipules, lateral; achenes straight 1. TJrtica 
Leaves alternate; stipules axillary; achenes oblique. 
Herbs; fruiting perianth not succulent 2. Fleur y a 
Trees or shrubs; fruiting perianth succulent — 3. Laportea 
Plants without stinging hairs. 
Pistillate perianth 3- to 5-parted or lobed, always free from the ovary. 
Leaves opposite. 
Cymes forming head-like glomerules 4. Pilea 
Flowers crowded In a fleshy receptacle 5. Lecanthus 
Leaves alternate. 
Trees — ., ...... - - 3. Laportea 
Herbs or rarely undershrubs. 
Pistillate perianth biseriate, the 2 inner lobes much larger than the 2 
outer • 2. Fleurya 
Pistillate perianth uniseriate. 
Inflorescences exinvolucrate. 
Both staminate and pistillate inflorescences cymose, sometimes greatly 
condensed and simulating receptacles, but then never involuerate. 
Pistillate perianth 4- or 5-parted, at least some of its segments 
conspicuously corniculate 6. Pellionia 
Pistillate perianth-segments at most obscurely acuminate or cor- 
niculate 7. Elatostematoides 
Staminate inflorescences cymose; pistillate flowers crowded on a 
fleshy receptacle, their perianth 3- or 4-parted, easily separ- 
able 8. Procris 
Ann. Mus. Bot. Lugd.-Bat. 4 (1869) 305, 306. 
