CONTRIBUTION TO OUR KNOWLEDGE OF PAPUAN FLORA. 19 



D. ensifolia Red. F. Muell Pap. PL, i (vi), 17 ; Ridl. 

 Joum. Bot., 24, 358 ; F. Muell. Austr. Scientific Magazine, 

 Oct. 1885 ; D. nemorosa Lam. ; Hemsl. Kew Bulletin, 1899, 113. 

 Mafulu. 



Family MUSACE^. 



(H. N. Ridley, C.M.G., M.A., F.R.S.) 



HeUconia Micholtzi Ridl. Sogeri (No. 826). 



Family ZINGIBERACE^. 

 (H. N. Ridley, C.M.G., M.A., F.R.S.) 



Riedelia Whitei Ridl. (n. sp.). 



Planta glabra gracilis ultra 30 cm. alta. Folia lanceolata 

 acuminata basi longe angustata 18 cm. longa 3 cm. lata, 

 petiolo gracili 2 cm. longa, ligula brevis glabra truncata 2 mm. 

 longa vagina 6 cm. longa striolata baud cancellata. Racemus 

 simplex 5 cm. longus vel ultra, decurvus terminalis, floribus 

 ad 12 pedicellLs 2 mm. longis. Calyx tubulosus cylindricus 

 15 mm. longus, ore obliquo lamina ovali. Corollae tubus 

 aequUongus, lobus superior elongata 7 mm. longus lanceolata 

 acuminata in acumine longo, late rales multobreviores lineari 

 oblonga 5 mm. longus. Labellum brevius, bifidus lobis lanceo- 

 latis acuminatLs. Capsula oblongo elliptica rubra bilocularis in 

 valvLs 2 deh scens 1 cm. longa, 5 mm. crassa. Semina plurima 

 aurantiaca. 



Deva Deva (White, 655, 613). 



Only one flower in moderate condition unfortunately, and 

 that with the stamen decayed. The upper corolla-lobe has a 

 jjeculiarly long acuminate point. The fruiting specimen 

 No. 613 probably is of the same species. The fniits are peculiar 

 from their dehiscing in 2 valves leaving a mass of very small- 

 angled seeds in the centre. 



Hornstedtia lycostoma Schum. Sogeri. 405. 



Bracts red on edges, white-spotted on general ground 

 area, white at base. 



Riedelia lanatilignlata Ridl. (n. sp.). 



Caulis validus 2 cm. crassus. Folia lineari-lanceolata 

 acuminata basi angustata ; superne hirtula ; subtus moUiter 

 liirta margine sericea 60 cm. longa 95 cm. lata ; petiolo 

 canaliculato 8 cm. longa, vaginis cancellates hirtis vel sub- 

 glabrescens, ligula maxima ovata 6-7 cm. longa 2 cm, lata dense 



