216 
LYTHRACES. 
PrMpPuis ACIDULA Forst. Char. Gen. Pl. 68, t. 34; F. Muell. Pap. Pl. 43-59; 
Schum. & Laut. 460. 
Wakdé Island, growing thickly on coral-reef on coast, where washed by 
sea. Fl. (white), Fr. Jan. 6246. 
Distrib. New Guinea (N.E. & 8.E., and adjacent islands), Strand plant 
distributed from Polynesia to E. Africa. 
Shrub, prostrate, to 3 m, in height, where beyond the spray. 
MeELASTOMACES. (KH. G. Baxen.) 
OTANTHERA NOVO-GUINEENSIS Bak. f. in Trans. Linn. Soc. ser. 2, Bot. ix. 
(1916) 50. 
Island of Roon, near the road round the Bay, growing in the open. F'l., 
Fr. Jan. 6238. . 
Distrib. New Guinea (D.8.W., Utakwa, near to Mt. Carstensz, Kloss). 
«Small shrub, with white flowers and red fruit.” 
MEDINILLA RHODORHACHIS Bak. f., sp. nov. 
Planta epiphytica, ramis 4-gonis vel levissime 4-alatis ad nodos barbatis ad 
M. speciosam Blume accedens. Folia sessilia, opposita, oblonga vel elliptica, apice 
breviter acuminata, basi cordata, 5-plinervia, costa subtus conspicua. Flores 4-meri 
in paniculam dispositi. Panicule folio breviores. Pedicelli stricti. Bractee 
parve. Oalycis tubus campanulatus limbo subtruncato. Petala alba staminibus 
paullo longiora. Staminum connectivus postice breviter calcaratus, antice bical- 
caratus. Fructus ignotus. 
_ Hab. Schouten Islands, Wiak, Bosnik, epiphytic on strand tree. 
Flowers white; rhachis pink. Fl. Dec. 6275. 
Leaves (ex sice.) +2-3 dm. long and 7°5-13 cm. broad. Calyse +3°5 mm. 
long. Petals +6 mm. long. Anthers 3-3:5 mm. long. 
The distinguishing features of this epiphyte are the oblong or diisecal, 
acuminate, 5-plinerved, sessile leaves, the panicle of small, white, 4-merous 
flowers, the calyx being +3°5 mm. long. The anthers are ‘shortly spurred 
anteriorly and posteriorly: 
ARALIACES. 
POLYSCIAS SORONGENSIS Gibbs, sp. nov. 
Frutex parvus, glaberrimus. Folia pedicellata, stipulata, imparipinnata, 5-6- 
juga, rhachis cylindrica, longitudinaliter striata; foliola opposita, graciliter pedicel- 
lata, obovato-lanceolata vel oblonga, acuta, basi obliqua rotundata, apice sensim 
acuminata, subintegerrima tenuiter membranacea. Panicula pedunculata nunc 
bipedata, racemuli umbellati pedunculi secundarii verticellati vel oppositi. Flores 
parvi, breviter pedicellati, pedicelli sub flores articulati, apice in calyculum minimum 
expansi. Calyx repando-5-dentatus. Petala 5, apice leviter coherentia. Stamina 5, 
