105 



This plant is brown-green in colour, l'5-2 dm. in height. It is larger in 

 all its parts than C. ornata, and the flowers showed the same horizontal 

 position. Middle sepal T3 cm. long from Ihe centre and 1'8 cm. long from 

 the lobes, by 1'5 cm. broad, the lamelii on the veins at the base being 2 mm. 

 long and 1 mm. broad ; the lateral sepals are 1*2 cm. long, 2'5 mm. broad 

 at the base and 1 mm. in the lignlate upper portion ; the outer perianth 

 segments are somewhat shorter and narrower at the hastate base. Stamens 

 2 mm. long. In anthesis the style is undeveloped, and the stamens, more or 

 less erect, close over it ; as these mature they deflex (fig. 7, G, $ stage), 

 until in the ? stage (fig. 7, F) the anthers are shed, the persistent filaments 

 curling round the base of the mature elongated style, the stigma becoming 

 fleshy and 3-lobed. 



This species is nearest to C. ornafa, but is distinct from all Corsias so far 

 described in the hastate base to the lateral perianth segments. 



The remarkable protandry characterizing this genus was suggested by 

 J. J. Smith (I. c. 197), but he had not sufficient material to be quite certain 

 on this point. The above description is based entirely on formalin material, 

 but only the two flowers figured were available in this case. My abundant 

 formalin material of C. ornata, however, quite confirms this point, and the 

 stage in the position of the anthers is drawn from that. 



R C H I D A C E 2E. (J. J. SMITH.) 



The collection of Orchids is a rather extensive one ; it totals up 83 

 numbers, representing 57 species and varieties, amongst which are 20 new 

 species and 4 new varieties. 



Remarkable is the occurrence of Spatlwglottis aurea Lindl. that is to 

 say, the plant I described in " Die Orchideen von Java" under this name 

 in New Guinea. This species has also been collected in Sumatra. However, 

 I have seen no authentic specimens of /S. aurea, and, indeed, the description 

 of S. Wrayi Hook. f. suits the plants better. 



Phajiis ftavus Lindl. has now been collected by Miss Gibbs in much larger 

 specimens than those of Gjellerup : the variety may hardly be upheld. 



Platanthera elliptica J. J. S. has been collected in 11 numbers. One of 

 these agrees with the type-specimens, only it is larger. The remainder 

 represent two forms, the one tall with a proportionally short spur to the lip, 

 the other a smaller plant with a larger spur. 



PLATANTHERA ELLIPTICA J. J. S. in Bull. Jard. Buit. 2 e ser. n. xiii. (1914) 

 53; in Nova Guinea, xii. (1915) 177, t. Iv. 90. 



Arfak Mts., Koebre ridge between <J and ? lakes, on burnt open 

 summit plateau, 9000'. Fl. Dec. 5602. 



Distrib. New Guinea (D.g|.W., Wichmann Mts., Pulle). 



