102 



ZlNGIBEEACE^. (TH. VALETON.) 



ALPINIA ARFAKENSIS K. Sch. in Engl. Bot. Jahrb. xxvii. (1899) 296. 



Var. SUBSESSJLIS Val., var. nov. 



Folia subsessilia minora, glaberrima, siccando valde convoluta coriacea. Ligula 

 20 mm. longa vel longior, valde macerata. Anther <s appendicula magna truncata, 

 canaliculata. Cetera genuinse. 



Arfak Mts., S.W. ridge, common, 7000'. Fl., Fr. Dec. 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. arfaAentis 

 K. Sch., which I have not seen, only differing in tl.e length of the petiole 

 and ligula, that I tbink 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. 



Uistrib. New Guinea (D.N.W., Hatam, Beccari). 



ALPINIA DOMATIFERA Val. in Nova Guinea, viii. (1913) 955. 



Arfak Mts., Angi lakes, S.W. ridge, common, 7000-8000'. Fl., Fr. Dec. 

 5980. Lower high forest. 5000'. Fl. (red), 6132. Fl. (white), 6131. 



Diatrib. New Guinea (D.N.W., Arfak Mts., 2400', Gjellerup}. 



RlEDELlA MONTANA Val., Var. ARFAKENSIS Val. 1. C. 972. 



Arfak Mts., Angi lakes, in forest by ? lake, 7000'. Fl. Dec. 5517. 

 Koebre ridge, 9000' ; common on burnt open summit. 5612. 

 Most variable in the colour of the flowers. 



HIEDELIA MONTANA var. PUBERULA Val., var. nov. 

 Ligula, rhachis, denies calycis puberula, cetera genuinae. 

 Arfak Mts., common in marsh by ? lake. Dec. 5515. 



RlEDELlA EXALATA Val., sp. nov. 



Herba glabra. Folia subsessilia, lineari - lanceolata, valde acuminata, busi 

 angustata, costa canaliculata, glaberrirna, 200x22 mm. longa. Ligula brevissima 

 (1 mm.), lobis rotundatis, puberulis. Racemus gracilis-laxiflorus, 85 mm. longus. 

 Flares graciliter pedicellati (pedic. 2-3 mm. longi). Calyx brevis, tubulosus, 

 superne dilatatus, dorso brevissime fissus, bilobus vel subtrilobus, lobis brevibus 

 rotundatis, exalatus, nervoso-striatus. Corolla tubus inclusus ; lobus dorsalis apice 

 acute cucullatus, ceteros includens. Labellum alte partitum ; lobi oblique truncati 

 obtusi, lobulo laterali angusto. Filamentum breve, anthera) connective lato, apice 

 emarginato. 



Hab. Arfak Mts., Koebre ridge, in forest, 8500'. Fl. Dec. 5637. 



This species has much resemblance to R. brchioidet, but the flowers 

 are smaller, the inflorescence is more laxiflorous, and. the calyx has no 

 wings ; it is nearest to R. urceolata Val. {vide Engl. Bot. Jal.rb. lii. 

 (1914) 83). 



