— 55 - 



superiores oblongo-ellipticae aciitae et mucronulatae subplanae, ultimae comae 

 oblongae basi attenuatae obtusae. Bracteae florentes pallide virides etalbescen- 

 [es, intermediae albae et albovirides, supremae pallide roseae apice purpureo. 



Bracteolae tubum floris superantes, hirtellae. Flores albi, vulgo exserti. 

 Calyx hirtellus obtusissime dentatus, albus, tubi coroUae longitudinis 

 aequans vel superans (sed longit. variabilis). Corollae tubus sublutescens 

 brevis in faucem campanulatam latissiraam dilatatus. Petalum dorsale latum 

 album, extus totum hirtellum mucrone valido. Labellum flavum subrotundum 

 vix unguiculatum, lobo medio vix protruso, apice bifido lobulis subrotundis 

 sese imbricantibus. Staminodia pallide flava subrotundo-obovata. Filamentum 

 pallide flavum, angustum longum. Antherae prope basin dorso affixae puberulae, 

 apice distincte ligulatae, basi calcaribus brevibus validis subulatis antice 

 subexaratis munitae. Stylodia brevia. 



Plant after the bloom growing up to a height of nearly 2 m. and 

 forming 8 or 9 leaves. The primary tuber remains small, not more than 

 80 X 50, sometimes 40 X 40. The rhizomes progress partly horizontally,- 

 but for the greater part obliquely dovi^nwards directed (see PI. V.b.). They are 

 straight or the tops are somewhat downwards curved, never falcate and 

 upcurved, except in the germing endbud. 



The rhizome may attain a length of 200 X 25. The breadth of the 

 internodes is 5 — 10 mm. The young ones are clavate. The side-branches 

 develop mostly at both sides of the long chief branches at a right angle so 

 as to ' form long bi-pectinate or pinnate bodies the longest side-branches 

 are than long 45 X 15 and they end with blunt white tops. The external 

 colour is light-yellow, afterwards grey. Internally the tuber and rhizomes 

 are pure bright yellow (226, also 236 and 231, sometimes 206 — 211). In 

 older branches somewhat mixed with brown (210). 



The roots are partly thick and fleshy, densely covered with root-fibres, 

 partly filiform, they may attain a great lenght (400 mm.) before forming 

 pendulous tubers, which pass again into root-tubers at the top. The pendulous 

 tubers are narrowly fusiform (70 X 18, 80 X 15); their section is white- 

 grey, sometimes with a yellow tinge (246) in the middle. 



The leaves are uniformly green, rather broader and less prolonged at 

 the base than those of C. Mangga. Of a sterile plant (H. bog. 65. 10) with 6 

 leaves was noted; sheaths: 220 — 350, petioles of the 4 innermost leaves: 50, 

 70, 130, 140. Blades 175 X 75, 300 X 110; 330 X 130, 420 X 130 

 (average 350 X 135, thus P. = 2.4. Of an old plant, which has not yet 

 flowered, the largest leaf, the youngest but one, Js 530 X 200 X 150: 

 (P. = 2.6.). A similar leaf of another plant from the Yang mountains, 550 X 

 165 + 140, (P. = 3.3.). 



The ligula consists of two crescents convex above, broad 2. 5 — 3 mm., 

 which touch each other in the middle of the innerside, forming so a V, 



