‘ 
105 
This plant is brown-green in colour, 1-5-2 dm, in height. It is larger in 
all its parts than C. ornata, and the flowers showed the same horizontal 
position. Middle sepal 1:3 cm. long from the centre and 1-8 cm. long from 
the lobes, by 1°5 cm. broad, the lamelli on the veins at the base being 2 mm. 
long and 1 mm. broad ; the lateral sepals are 1-2 em. long, 2°5 mm. broad 
at the base and 1 mm. in the ligulate upper portion; the outer perianth 
segments are somewhat shorter and narrower at the hastate base. Stamens 
2mm. 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, 3 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. ornata, 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 (/. ¢. 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. 
ORrcHIDAcEZ. (J. J. Smiru.) 
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 Spathoglottis aurea Lind|l.—that is to 
say, the plant I described in “ Die Orchideen von Java” under this name— 
in New Guinea. This species hasalso 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. 
Phajus flavus 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. 8. 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° sér. n, xiii. (1914) 
53; in Nova Guinea, xii. (1915) 177, t. lv. 90. 
Arfak Mts., Koebré ridge between g and ¢ lakes, on burnt open 
summit plateau, 9000’. Fl. Dec. 5602. 
Distrib. New Guinea (D.S.W., Wichmann Mts., Pulle). 
