77 



profusion between the leaves of the water lilies 

 and 253 Sisum, 254 Cyperus, 255 Dryopterus. 

 This plant seems to send out lateral shoots from 

 which new plants develop, then break off and 

 float away. They appear also to propagate from 

 seed, for freshly germinated very young plants 

 were found on the root masses of 254. 

 Locality— Embi Lake. Found also floating down 

 the Sepik, and in still lagoons behind the banks 

 of that river. 



Date. — August, 



Remarks. — The roots are cooked and fed to his 



mistress by a native desirous of increasing the 

 lady's affection. 



Locality. — Trail to Gap from Kokoda, at an alti- 

 tude of 4,000 to 7,400 feet. 

 Material collected. — Leaves and flowers. 



Orcpiidaceae. 

 Calanthe flabelliformis, No. 433; Calanthe sp 



i\o. 



Sis 





- 



Flagellaraceae. 



urn sp. (Prob. S. anth elminticum) , No. 253. 



Large plant, 6 feet high. 



Leaves. — A large cluster, 6 feet long. 



Stem. — The main stem puts out these clusters of 

 leaves and also puts out fresh shoots into the 

 water, and these bear new clusters of leaves. 

 When the growth of a new shoot extends out 

 into deep water the weight of the leaf cluster 

 is apt to over-balance the shoot, so that it is 

 turned up above water with its roots uppermost. 

 On the root surface thus exposed there germi- 



411 ; Calanthe latis?imoformis Rogers, No. 426a; 

 Ceratostylis calceiformis Rogers, No. 361; Den- 

 drobium bilamellatum Rogers, No. 408; Dendro- 

 bium Lane Poolei Rogers, iSTo. 406; Dendrobium 

 Delphinioides, No. 394; Epiblastus tuberculatus 

 Rogers No. 373; Oberonia oblonga Rogers, No. 

 414; Phalaenopsis amabilis BL var. Papuans 

 schltr., No. 807; Spathoglottis Lane-Poolei 

 Rogers, No. 249; Indt, Nos. 526, 529, 262. 



Calanthe flabelliformis Rogers, No. 433. 



Orchid. Terrestrial. 4 feet high. 



Leaves. — Large. 



Flowers. — White, exceedingly ornamental. 

 Locality, — TJberi, in wet, swampy river-side 

 country. 



Date.— February, 1923. • ■ 



Remarks. — The most arresting orchid I have seen 

 in Papua. 



Material collected. — Flowers and leaves. 



nat or. 2 ^ 4 c ypenis, and intertwined with both Calanthe sp., No. 411. 



is 255 Dryopterus, while floating around them 



is 256 Bistia. 



through 



The 



vegetation 



clear to 



thus formed, 



all 



some cause which was not at 

 me, detaches itself from the banks in 

 pieces up to 50 yards square, and then floats 

 about, carried by the faint current towards the 

 mouth of the lake, until it disintegrates or goes 

 aground. m " 



Orchid. Epiphyte, mossy forests. 

 Flowers. — Yellow. 



Locality. 

 Date.- 



Vol 



■Ret ween Adai and Xaro Rive 



1923. 



>ruary, 

 Remarks. — ( \>mnion. 



Material collected. — Leaves and flowers. 



m The presence of floating islands has Calanthe kUissimiformis, Rogers, No. 426a. 



given rise to a number of superstitions connected 



with Embi Lake, so that my investigations of its Ccralosl i/lis calceiformis Rogers, No. 361. 

 flora were rather hampered. 

 Material collected. — Leaves, flowers. 



Ltliaceae. 



■/ 



A little tree ; randy more than 12 feet high and 



20 inches in girth. 

 Leaves. — Linear. 



Flowers. — Cream. 

 Bark. — Grey. 



Locality. — Yonombo. 

 Date. — 15th February 

 Native 



Orchid. With grass-like stem and minute white 



flowers. 



Locality. — Owen Stanley Range. Mt. Obree, 8,000 



to 10,300 feet altitudes. On trunks of trees in 

 the moss forests. 

 Date.— February, 1923. 



Material collected. — Leaves and flowers. 



« 



Dendrobium La/n-Poolei Rogers, No. 406. 



Orchid. Epiphyte on moss covered trunks. 



1924. 



Flowers. — Orange yellow pendant. 

 Locality. — Ret ween Adai and 



Xaro ; 



6,000 



to 



nombo). 



names. — Nan age (Moontu), Wan 



(Yo- 



Remarks. — A very common undergrowth in rain 



forests and foot-hill forest to 5,000 feet. 

 Material collected. — Leaves, flowers. 



Iridaceae. 

 Libertia pulchella Spreng, No. 507. 







Plant up to 10 inches high. 



Flowers. — White. 



Locality.— Salawaket, 8-10,000 feet. 



Date. — 23rd November. 



Remarks. — A common object in the Libocedrus- 



Dacrydium forest. 

 Material collected. — Leaves and flowers. 



ZlXGIBERACEAE 



Eriolopha, No. 268. 



A plant 2 ft. 6 in. high. 



Flowers. — A pretty shade of orange yellow. 



Fruit. — Yellow capsule, containing a large number 



of red arilled seeds. 



7,800 feet. 

 Date.— February, 1923. 

 Remarks. — Common, conspicuous orchid of the 



lower elevations of the mossy forests. 

 Material collected.- — Flowers and leaves. 



Dendrobium delphinioides, No. 394. 



Orchid. Epiphytic on tree trunks. 



Flowers. — Red, pendant. 



Locality. — Owen Stanley Range, 5,000 feet, near 



Laruni. 

 Date.— February, 1923. 



Material collected. — Leaves and flowers. 



Dendrobium caliculimeni am Rogers, X o. ii(ir>. 



An epiphytic orchid, hanging in 3 feet to 4 feet 



pendant stems. 



Flowers. — Ornamental, dark rose at base, pale rose 



at tips. Reminds on of the Cape heaths. 

 Locality. — 6,000 feet on trail between Kokoda and 



the Gap. 



Flowers in August. 



Date.— 



Remarks.— A beautiful orchid. 



