REPORT ON THE BOTANY <»F THE ADMIRALTY ISLANDS. 247 



CASUARINEiE. 



Casuarina equisetifolia, Forst. 



Casuarina equisetifolia, Forst. j Seem., Fl. Vit., p. 263 ; Nadeaud, Enum. PL Tahiti, p. 42 ; Jouan in 

 Mem. Soe. Sci. Nat. Cherbourg, xi., 1865, pp. 123, 138, 147. 



Admiralty Islands. — This is now generally diffused in warm regions, chiefly in 

 maritime districts, and in Polynesia it extends eastward to the Marquesas and northward 

 to the Mariannes, but it does not occur in the Sandwich Islands. 



MONOCOTYLEDONES. 



ORCHIDEfi 



DENDROBIUM. 

 Dendrobium nitidissimum, Rchb. f. 



Dendrobium nitidissimum, Rchb. f. in Journ. Liiin. Soc. Lond., xv. p. 112. 

 Nova sectio Diplocaulobium. Rhizomatis repentis gemmae alise pseudobulbos mony- 

 phyllos sistentes, alias pedunculos basi vaginatos, apice floridos. 



Pseudobulbis fusiformi - teretiusculis, siccis multiangulatis sulcatisque monophyllis, 

 folio lineari-ligulato attenuato bilobulo ; pedunculo a pseudobulbo foliato liberrimo ex alia 

 gemma, nitido basi vaginato aucipiti, apice bractea magna chartacea nitida, superaddita 

 bractea minore, fatua visa ; flore solitario (semper V) valde membranaceo, mento bene 

 evoluto, lobulato, sepalis elongatis acuminatis, tepalis angustioribus, labello sepalorum 

 dimidium excedente a basi lineari extenso, medio trifido, laciniis lateralibus obtusangulis 

 antice lobulatis, lacinia media late ligulate lobulata, carinis geminis a basi versus discum 

 laciniae mediae, ibi melius crispato-lobulatis, antice in pilos numerosissimos tomentum 

 densum eflicientibus solutis, columnae androclinio trifido, laciniis membranaceis. 



Floris perigonium quasi rostriforme illi Thrixspcrmi cujusdam {Arachnitis, etc.) 

 comparabile, f pollicis longum, delicatissimum, tenuissimum. Plantula valde egregia 

 dignitate gemmarum varia insignis. Macrolcpidi, A. Rich, eo comparabilis, quod rhachis 

 sub bractea incisa quodammodo articulata. Labellum Macrolepidis tamen exacte est 

 illud Bulbophylloswm. 



Admiralty Islands. — Endemic. 



Dendrobium scopa, Lindl. var. 



Dendrobium scopa, Lindl. var. ; Rchb. f. in 'Walp. Ann., vi. p. 303. 



Admiralty Islands. — Also in the Philippine Islands. 



