102 
ZINGIBERACEA. (TH. VALETON.) 
ALPINIA ARFAKENSIS K. Sch. in Engl. Bot. Jahrb. xxvii. (1899) 296. 
Var. SUBSESSILIS Val., var. nov. 
Folia subsessilia minora, glaberrima, siccando valde convoluta coriacea. Ligula 
20 mm. longa vel longior, valde macerata. -Anthere appendicula magna truncata, 
canaliculata. Cetera genuine. 
Arfak Mts., S.W. ridge, common, 7000’. FIl., Fr. Dee. 5524, 5983 bis. 
“ Plant 1-1°50 m. in height, with pink flowers and white fruit.” 
This specimen answers so excellently to the description of A. arfakensis 
K. Sch., which I have not seen, only differing in tle length of the petiole 
and ligula, that I think it must be a variety of it. There is, however, a large 
crista to the anther, as broad as the anther itself, and therefore easily over- 
looked. Schumann’s description, “connectivi appendicula 0,’ must be a 
lapsus, the flowers being too like one another to admit of so great a difference 
in the anther. 
Distrib. New Guinea (D.N.W., Hatam, Beccari). 
ALPLNIA DOMATIFERA Val. in Nova Guinea, viii. (1913) 955. 
Arfak Mts., Angi lakes, 8.W. ridge, common, 7000-8000’. Fl., Fr. Dee. 
5980.—Lower high forest. 5000’. Fl. (red), 6132. Fl. (white), 6131. 
Distrib. New Guinea (D.N.W., Arfak Mts., 2400’, Gjellerup). 
RIEDELIA MONTANA Val., var. ARFAKENSIS Val. |. c. 972. 
Arfak Mts., Angi lakes, in forest by 2 lake, 7000'. Fl. Dec. 5517.— 
Koebré ridge, 9000’; common on burnt open summit. 5612. 
Most variable in the colour of the flowers. 
RIEDELIA MONTANA Var. PUBERULA Val., var. nov. 
Ligula, rhachis, dentes calycis puberula, cetera genuine. 
Arfak Mts., common in marsh by 9 lake. Dec. 5515. 
RIEDELIA EXALATA Val., sp. nov. ; 
Herba glabra. Folia subsessilia, lineari- lanceolata, valde acuminata, basi 
angustata, costa canaliculata, glaberrima, 200 x 22 mm. longa. Ligula brevissima 
(1 mm.), lobis rotundatis, puberulis. Racemus gracilis-laxiflorus, 85 mm. longus. 
Flores graciliter pedicellati (pedic. 2-38 mm. longi). Calyx brevis, tubulosus, 
superne dilatatus, dorso brevissime fissus, bilobus vel subtrilobus, lobis brevibus 
rotundatis, exalatus, nervoso-striatus. Corolle tubus inclusus ; lobus dorsalis apice 
acute cucullatus, ceteros includens. Labellum alte partitum ; lobi oblique truncati 
obtusi, lobulo laterali angusto. Filamentum breve, anthere connectivo lato, apice 
‘emarginato. 
Hab. Arfuk Mts., Koebré ridge, in forest, 8500’. Fl. Dee. 5637. 
This species has much resemblance to R. orchioides, but the flowers — 
are smaller, the inflorescence is more laxiflorous, and the calyx has no 
wings ; it is nearest to Ht. urceolata Val. (vide Engl. Bot. Jal-rb. lii. 
(1914) 83). 
