2(,(j ROBINSON. 
o„ly to tl,o pi.tilUte. Only on. .eceptaele is present on the Sarawak Mu.eiuu 
n a erial, but it is starninate, borne npon a peduncle 3 nun long pubescent hke 
Te stem slender in contrast to the ,oneval tbiekened nature o the stems and 
eaves The bracts are corniculate, the flowers totran.evous. All tins rs m hue 
ithStapf's suggestion, except that other rbilippine specres co.ne closer o 
E\„mL. tbin does E. .lauc.rrr,. although the texture of the leaves JouW 
keep it distinct fron, any of then, even if there were no other characters. Prol>ably 
its nearest allies are E. hetero„lu,Uu,a C. B. Kob., whose leaves have qurte a 
Serent outline and u,argin,. and E. oUraUu. Wedd. uhich has nu.cb larger and 
differently shaped leaves. 
Elatostema lineare Stapf 1. c. 228. 
Mount Kinabalu, Kinitaki River, at .',,000 feet elevation, Uaciland ^-'^ tjpe 
collection. This at once suggests E. i,h.m,ti.ern,n„ Elmer, by reason of the 
pinnate leaf-venation, but the leaf-outline is very diflferent, and the stamrnate 
receptacles of E. pin„.n„ern,n. are peduncled .bile those of E. m.«r. a 
sessile The leaf resen.blance is much closer with an undeternnned specnnen 
from Polillo, B»r. Sci. iWX,. but tl>e leaf-teeth of the latter are more dee,dy 
cut, and the stipules of the Borncan plant are^ longer than those of either the 
Polillo plant or of E. jHiimitiiicri-iuin. 
Elatostema lithoneurum Stapf 1.0. 230, rt. A7A-, /ii;. C, fl-itf. 
Mount Kinabalu, at 11,000 feet elevation, IlucUa,.! liOO, type collection. T e 
specimen has much external re.semblance to E. imhnnnu-nne C B. R"'^" J- 
leaves are similar in outline and margin, but wider on the Plulippine plant 
whose narrowest are of about the width of the widest of t^'*' B"';"'^'"'' f "^^ ^'" 
also more .lefinitelv ohlanceolate or obovatc than the latter. Further, the uppe. 
. Burface of the lea;es of E. paUicanense is scabrous, while the pubescence of i^. 
nthoneurum is much more scattered, the hairs somewhat longer, the ^"'f'^^" " 
at all scabrous. The under surface of the Palawan leaves is "1«" '"^^'^ V"'" 
denselv pubescent, with this pubescence glaucescent, much paler than on t 
Borne.;n plant. The lateral veins of the latter leave the costa at a smaller an le 
Finally, the staminate receptacles of E. lithonrurum have rather long and slu ^^^^ 
' pedun.les, but some young ..nes in the upi)er axils are sessile, ami tins «-» 
state in which the Palawan plant wa.s found. 
Several of these differences bring E. Ulhonan-nm close to E. '«»""''"*''^,;^,^^.^.;; 
the nearest Philippine alliance of E. palaicunciu'ie, but that is a "'"'•'.' , 
plant, with the staminate receptacles sessile or on short stout peduncles, 
leaf-teeth are coarser, and tlie terminal acumen much more prolonged. 
The sei-ies of E. lilhoneurum, E. palaicancnsc, E. lagunrn.i,'. links tlii 
last with E. pahulo.,,,,, Miq., as represented by Uallicr 396, '^^J"""^"^'/*^*' .^j,, 
species ill its turn having been reduced by Weddell '• to the status of ^J-_^ 
of E. mocrophyUum Brongu. Tl.e ease, between E. hiynncnxr and E. 1"""_^,^^ 
is very critical indoe.l, but the former has much more continuous lea ^^^ 
the leaves themselves are larger, and the stipules somewhat longer. ^^ ^^^ 
cult to decide positivelv upon a single collection, and our specimen ^^^ ^^ 
Javan plant is sterile, but tlie two species may prove to '^<' ""^'^P' ^^^ 
separation. Between E. paU,<lo.-<i,m and E. marrophyllum, the diiui - 
quite sufficient for them to be held apart specifically, if the ^^''^'''^'r^^,;,, 
represented by the specimen above cited, and the latter by JKilher .1.,. 1 ^^^^^ ^^^ 
Java. E. macrophijlluni is described as pcnninerved, wliich agrees wel ^^^ 
specimen, but th,- same can not be said of lloUier ;Wf?, as the basal 
ough the 
'DC. l'ro<lr. 16' (18«n) 1"4. 
