PHILIPPINE URTICACEAE, II. 307 
^ 
stipules narrow!}' oblong, 4 to G mm long, acuminatCj witli cystoliths on 
the co^ta, ciliate or glabrous. 
Luzon, Subprovince of Benp;uet, Mount Tougloii. in mossy fore?it at alxnit 
1,900 in elevation. Phil. PL 812 Merrill. Witli this belongs Merrill 76'/). from 
a more shadod place at a slip^htly lower elevation on the same monntain. The 
leaves average slightly larger, and are eonspi(.uou8ly thinner, with fewer marginal 
teeth. Otherwise the two collections agree down to the details of the fluwers, 
and the stipules and venation are the same. JJ. purpnreum has as nnich the 
general appearance of E. Jaguncnsc Merr. as of any other Philippine species, 
but the staminate bracts are less corniculate, the leaves smaller, and the 
stipules shorter. Probably the closest alliance is with E. liihoneurum Stapf^* 
43. Elatostema scapigerum C. B. Rob. in Philip. Journ. Sci. 5 (1011) 
Bot. 542. 
While additional collections have in general confirmed the statements ])revi- 
ously made regarding the position of the staminate receptacles of this species, 
a single small plant of Vanovcrhcrgh P236 has the peduncle arising from one 
of the upper leaf-axils, and on another plant the ])eduncle is about half-way 
up the stem. In rare cases, therefore, the species might fail to be recognized 
by the characters assigned to it in the key, but it is still very different from 
anv other of our species. On the whole, it may best be compared with E. 
longipeduncuJatum Elmer, but the structure of the staminate receptacles is 
very different, resembling more that found in the ordinary pistillate receptacles 
of the genus. By dissecting a young receptacle, also from Vanovcrbcrgh 12^r^. 
which had attained a diameter of about S mm. or about half that of the average 
mature receptacle, it was easy to trace the 6 bracts typical of the stammate 
receptacles of the genus, but the two pairs which ordinarily are at least 
partially covered by the outer pair were at this stage already lateral to the 
latter. It is probable that still younger stages might show an ovon more typical 
structure. These two outer bracts were ovate, 2.5 to 3 mm long, the apex 
rather acuminate-mucronate than corniculate. for the apical projection is formed 
by the costa, which bears no spur. The other two pairs of bracts are about 
2.5 mm long, also ovate, less acuminate. Still another receptacle of the same 
eollection has a peduncle over 13 cm long. All suspicion that the form might 
prove to l>e a monstrosity has been removed, and its range has been extended to 
Benguet. at Bagnio, }fcrrni 1882, and on Mount Tonglon, Merrill 'f'^'y^J 
2 Elatostema variabMe C. B. Bob. in Philip. Jourm Sci. 5 {1011) Bot. .>14; 
I. c. 6 (1011) Bot. pi 1. ^ ^ ^^a 
20. Elatostema banahaense C. B. Rob. 1. c 5 (1911) Bot 526 _ 
28. Elatostema carinol W, R. Sbaw ex C. B. Rob. 1. c 5 (1911) ^ot .3 
All of these have been supplements by additional collec ions. -"- ^^/^ ^J 
are as tvpical as could possibly be desired, while others ^'-^ .P^ ^'^.^^J^^.^^^ 
diffu-uU p'bleins. As regards E. U.aMense, there are wo additiona eo c^^^^^^^ 
from Mount Banaiao, Mernll 751C and one from the herbarium of ^^^^^ 
College of Agriculture, obtained by S. .Uu.c,o. he "^ ^^^^^^ ^ "^ 
the i:iter prcrbably' gathered within a very short distance from ^ - ;2\^^ 
locality. B^oth hate more nature staminate receptacles tlum * - /^^ *^^^^^^^^^^ 
and .iule the bracts are corniculate, this ^^''^-^*^\;\^/^^tcfe- 1 be^^^^^^ 
that it is inconspicuous in the mature receptacles, so -\ '-/7;;;^\;^^^ 
placed near E. carlnoi than with E, rindesccns and its allies. Moreo^er, 
^oSee above, page 207. 
