xi, c, 6 Merrill: Reliquiae Robinsonianae 277 
LINACEAE 
HUGONIA Linnaeus 
HUGONIA ROBINSONII sp. nov. 
Frutex scandens glaber, ramis teretibus, ramulis plus min- 
usve angulatis; foliis chartaceis, lanceolatis ad oblongo-lanceo- 
latis, usque ad 20 cm longis, utrinque subaequaliter angustatis, 
apice acute acuminatis, basi acutis, nitidis, margine crenulato- 
denticulatis, nervis utrinque 14 ad 16, curvatis, anastomosan- 
tibus ; inflorescentiis terminalibus, paniculatis, multifloris ; sepalis 
glabris, orbiculari-ovatis, rotundatis, circiter 2 mm longis ; petalis 
oblongis, circiter 8 mm longis, apice obtusis, basi angustatis, 
cuneatis. 
A scandent glabrous shrub 2.5 m long or more, entirely gla- 
brous. Branches terete, lenticellate, pale-brownish, the branch- 
lets dark reddish-brown, somewhat angled when dry. Leaves 
chartaceous, shining, lanceolate to oblong-lanceolate, 11 to 20 
cm long, 4 to 5.5 cm wide, those on the inflorescence much 
smaller, subequally narrowed to the prominently and acutely 
acuminate apex and to the acute base, margins rather distantly 
crenulate-denticulate ; lateral nerves 14 to 16 on each side of the 
midrib, curved, anastomosing, rather distinct on the lower sur- 
face, the reticulations rather close; petioles about 5 mm long. 
Inflorescence a terminal, somewhat leafy, many-flowered panicle 
up to 30 cm in length, the leaves subtending the branches or 
partial inflorescences much reduced in size, 2 to 7 cm in length, 
the hooks stout, recurved, attaining a length of at least 5 cm. 
Flowers numerous, orange-yellow, the bracts acicular, about 5 
mm long, the bracteoles similar but much shorter. Sepals orbi- 
cular-ovate, rounded, about 2 mm long. Petals oblong, about 
8 mm long, 2.5 mm wide, rounded or obtuse at the apex, base 
narrowed, cuneate. Stamens 10, the free parts of the shorter 
filaments about 1 mm long, of the longer ones 1.5 mm. Ovary 
oblong, glabrous, 1.5 mm long; styles 5, about 3 mm in length. 
Amboina, Gelela, Rel. Robins. 1783, September 19, 1913, in rocky soil 
near small streams, altitude about GO meters. 
A characteristic species apparently most closely allied to Hugonia pen- 
tagyna (Warb.) K. Schum. of New Guinea, from which it differs radically 
in its floral characters. 
ERYTHROXYLACEAE 
ERYTHROXYLUM P. Browne 
ERYTHROXYLUM ECARINATUM Burck in Ann. Jard. Bot. Buitenz. 11 
(1893) 191, t. 15. 
Amboina, Wae, Rel. Robins. 1854, November 26, 1913; Hitoe messen, Rel. 
