f 



— 136 — 



longis, brunneo-rubris (58), infimis albidis. Squama summa minor (25 mm.), 

 bracteis spicae opposita, olivacea. Scapus cum squamis pubescens. Spica 

 elliptica attenuata sive brevi-fusiformis, basi et apice attenuata acuta, 

 35X17 — 60X20 mm. longa, laevis, baud bullata. Bracteae rotundato-obo- 

 vatae, margine angusto ('/4 — ''2 mm.) albo, in siçco conspicuo, magis mi- 

 nusve incurvo, mucrone minuto subinconspicuo, pubero, ceterum basi excepto 

 glabrae, laeves, tenues, striatae, in vivo virides, superiores prope apicem 

 pallide purpureae. Exterior singula cassa, villosula magis bullata. Bracteola 

 latiuscula (25X15) glabra. Flores inter majores, albi, labello medio pallide 

 citrino, anthera circ. (171), 45— 54 mm. longi (tubus 34 mm.). Petalum 

 dorsale acute ovatum, 24X9; lateralia angusta, acuta, 20X3, ad medium 

 connata. Labellum suborbiculare bâsi unguiculatim attenuatum, apice in flore 

 adulto fere medium usque incisum 16X14, lobi semiovati pauUum diver- 

 gentes, Staminodia elliptica vel rliomboidea acutiuscula unguiculata a labello 

 tola libera (12X6). 



Habitat: Nova Guinea in partibus borealibus. 



This rather small herb was several times brought over from North- 

 east-Newguinea. It shows a rather feeble growth in our cultures. (Garden- 

 numbers XI B" 3, 33 and 136). It is conspicuous by the creamwhite flowers 

 which are almost as large as the spikes and a little oblique, the large 

 unguiculate staminodes, and the deep bifid labellum, therein equalling). Z 

 Cassuniunar. For the rest the species has much in common with the zerumbet 

 group, especially with Z. liitoralis, by the bracts and the free staminodes, 

 which are longer-clawed than in any other species. 



7. Zingiber Ottensii Val. Tab. nostra xix. 



{Zingiber sp. Griff Notul. HI 412, Ic. t 351 . -Z. Zerumbet Ridl. 1907, 27 p. p.) 



Herba robusta sesquimetralis, rhizomate intus atroviolaceo. Gaulis 

 subglaber, 8 mm crassus dense foliosus internodiis brevibus. Folia 

 (340X80) subsessilia, elliptico et oblanceolato-oblonga apice attenuato- 

 acuminata, acutissima versus basin saepius angustata basi rotundata, supra 

 glabra dorso subarachnoideai petiolo brevissimo dcrso hirsuto. Ligula inte- 

 gerrima apice subacuta, brevis lata 15 mm. longa, 13 lata, tenuiter mem- 

 branacea, glabra vel subglabra cum margine lato vaginae continua. In planta 

 juvenili folia lanceolala acutissime acuminata basi attenuata 230 X 40, ligula 

 minore 5—8 mm. longa, Spica magna ellipsoidea obtusa vel acutiuscula, 

 90 mm. longa, 45 mm. lata; vel etiam majot in vivo bullata. Bracteae 

 dense imbricatae et applicatae, valde convexae et apice profunde incurvo 

 non autem saccatae, obovatae vel inferiores sub-orbiculares, apice subtrun- 

 catae marginè brevi, tenui, scarioso applicato, in sicco parum conspicue, 

 tenerrime pillosulae, imprimis ad margines, 40 X (30-40). 



Flores majusculi (circ. 50-65 mm.) Bracteola (30 X 16) tubo paullum 



