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connectivis apiculatis vel rarius obsoletis. Gyneceum syncarpium, uni- vel bi- 
loculare, ovula solitaria, ab apice loculi pendula, anatropa; stylus magnus, pilei- 
formis. Arbores. Folia opposita vel alterna, coriacea nisi membranacea, penni- 
nervia. Stipule 0. Flores swpius in racemos dispositi, parvi. 
TRIMENIA ARFAKENSIS Gibbs, sp. nov. 
Arbor parva, ramuli rigidi, subangulati, cortice cinerascente, leviter longi- 
tudinaliter striato. Folia opposita, petiolata, ovato-lanceolata, acuta, basi in 
petiolum attenuata, serrata, membranacea, supra nitidula, subtus minute glanduloso- 
punctata. Inflorescentia pedunculata, axillaris, rufo-tomentosa, quam folia triplo 
brevior. Flores breviter pedicellati, plerumque hermaphroditi, receptaculo parvo, 
hemispherico. Stamina 10-14, biseriata. Ovariwm glandulosum, 1-ovulatum. 
Hab. Arfak Mts., edge of forest by 2 lake, 7000’. Fl. Dee. 5743. 
Largest leaves 6 by 2 em., drying cinnamon-brown ; the midrib 
generally villous, impressed above and prominent below, red-brown, with 
many transverse lateral veins. Petiole 6 mm., slender, villous, dark 
brown. Racemes 1'5 mm. long (including the 5 mm. peduncle), of 3-4 
pairs of flowers with a single terminal one. Flowers in bud, 4 mm. long, 
consisting of many spirally imbricating, very caducous scales or perianth- 
segments (15 were counted in one flower), 5-7 lower ones smaller and 
strongly keeled, ciliate on margins, the upper larger, petaloid (white), 
entire. Pedicels 1mm. Stamens 13 (in one flower), 2°5 mm. in length, 
with anthers 1 mm. and subulate filaments 1°5 mm. long, the inner series 
shorter. Ovary 1:5 mm. long, while still enclosed in the perianth-segments, 
when the immature stigma is grooved by the pressure of the inner series of 
stamens on the papille, forming vertical lines growing out later. The 
papille cover the stigma on maturity. After the fall of the perianth- 
segments, the ovary is 2°5 mm. long. Receptacle minute, + °5 mm. 
across. 
This plant is nearest 7. papuana Ridl., but differs in the rufous tomentum 
on the young parts and inflorescence, in the non-acuminate, serrate, and 
membranous leaves, and the small simple racemes. 
IpenBureia Gibbs, gen. nov. 
Flores hermaphroditi. Receptaculum parvum, bilaterale. Tepala 4, petaloidea, 
2-seriatim imbricata, decussata, subequalia, caducissima. Stamina 6-9-10, pistillum 
circumdantia post anthesin caduca, ad apicem receptaculi 1—2-seriatim affixa ; 
filamenta libera, lata, crassa, brevissima, anthere pro rata magne, adnate, lineare- 
oblonge, loculis parallelis, longitudinaliter dehiscentibus, connectivo plano vel 
apice apiculato. Ovariwm syncarpium, bicarpellatum, oblongum, biloculare, stigma 
maximum, sessile, pileiforme, apice truncatum, carnosum, sicut ovarium filamentis 
impressis longitrorsum rugatum; ovula 2, in quoque lgeulo 1 ab apice pendulum, 
anatropum. Fructus ignotus. Arbor vel arbuscula, glaberrima, folia alterna vel 
opposita, petiolata, glanduloso-serrata, penninervia. Flores pedicellati, in racemos 
terminales, breves, pauciflores dispositi. 
