Genus Neraudia — -Cowan 
239 
3(2). Lower leaf surface with many rather 
long, evenly distributed hairs. 
Uncinate hairs lacking on all 
plant parts. ............. .N. 
melastomaefolia var. Gaudichaudii 
Lower leaf surface with few or no 
hairs except on veins; if present, 
in intervals and very short; un- 
cinate hairs present on leaves 
and calices 4 
4(3). Leaves and calyx lobes coarse, thick; 
venation on lower leaf surface 
markedly salient; leaves usually 
triplinerved. Apical portion of 
achene depressed-conic, basal 
portion thickened. Calyx of 
staminate flowers with about 
equal proportion of straight ap- 
pressed and shorter, erect, unci- 
nate hairs. .............. .N. 
melastomaefolia var. melastomaefolia 
Leaves and calyx neither coarse nor 
thick; venation on lower leaf 
surface not very salient; leaves 
usually palmately nerved. Apical 
portion of achene usually conic, 
basal portion thin, often flat. 
Calyx of staminate flowers with 
all or most of the hairs short, 
erect, uncinate. 
. .N. melastotnaefolia var. parvifolia 
5 (2). Pubescence on lower leaf surface 
largely restricted to venation, 
primary intervals without long 
hairs. Outer margin of achene 
not involute 6 
Pubescence on lower leaf surface not 
restricted to venation, primary 
intervals with many long, ap- 
pressed or sub-erect hairs distri- 
buted over entire surface. Outer 
margin of achene involute 
. . N. melastomaefolia var. pubescens 
6(5). Secondary veins and smaller vein 
branches of lower leaf surface 
with many short, erect or sub- 
erect, uncinate hairs; lower leaf 
surface paler but not markedly 
pallid when dry 
. . .N. melastomaefolia var. uncinata 
Venation of lower leaf surface not 
as above, glabrous or sparsely 
pilosulose with few ascending, 
appressed hairs; lower leaf surface 
very pallid when dry 
. . . .N. melastomaefolia var. pallida 
7(1). Lower leaf surface white- or whit- 
ish-sericeous, usually conspicuous- 
ly viscid. Calyx of pistillate flow- 
ers distinctly angled, that enclos- 
ing mature achene thick-fleshy 
and with many fleshy ridges and 
angles 8 
Lower leaf surface pilosulose with 
hairs irregularly curving and 
bending or lower leaf surface 
puberulent 9 
8 (7). Leaf margin always entire, pubes- 
cence on lower leaf surface ap- 
pressed, oriented centripetally in 
primary intervals, mostly directed 
toward margin and producing a 
geometrically uneven sheen. . . . 
N. angulata var. angulata 
Leaf margin completely dentate, 
partly dentate, or rarely entire; 
pubescence on lower leaf surface 
mostly erect or sub-erect but 
upper part of each hair somewhat 
arcuate, pubescence oriented 
much as in var. angulata bur 
geometrically uneven sheen not 
marked 
N. angulata var. dentata 
9 (7). Lower leaf surface puberulent. 
Outer margin of achene involute 
N. ovata 
Lower leaf surface with more or less 
dense cover of grayish pubes- 
cence, hairs irregularly curving 
and bending or almost straight. 
Outer margin of achene not in- 
volute 10 
10 (9). Leaf margin entire 11 
Leaf margin irregularly undulate 
(only staminate flowers known) 
N. kauaiensis var. Helleri 
11 (10). Apical portion of achene conic 
without deep constriction sepa- 
rating it from basal portion. 
Leaf base usually sub-cordate; 
secondary branching of veins 
forming the conspicuous reticula- 
tion in primary intervals 
N. kauaiensis var. kauaiensis 
