2 
The position of this anomalous genus is apparently in the sub- 
tribe Vanilleae, as defined by Bentham, but it differs from all 
its allies in the long conduplicate ee and ae most of 
them in the lateral inflorescence. s character however, 
seen in Sertifera, Lindl., and in some ries of Vanilla, Swartz. 
In floral structure it bears a general resemblance to the latter genus, 
the base of the lip being adnate to the front of the column 
a considerable distance, though the side lobes are not adnate to 
its margin so as to form a tube. The pollinia are in bad condition, 
but so far as can be seen they pete Vanilla, as do the anther, 
stigma and rostellum. The habit, however, is totally different. We 
produced after the lower leaves have perished. The earliest evidence 
of the existence of such a plant is found in a few flowers on a Herbarium 
sheet at Kew which were originally preserved in spirit, also a sketch of 
the column. This plant is said to have been sent from Trinidad by 
Prestoe, and flowered at Kew in September 1870. A sketch is said to 
have been sent to Reichenbach, who returned the name Chloidia flava, 
Reichb. f., from which, however, it is quite distinct. The plant 2 
to have died and no specimen was preserved. Specimens of the s 
thing were afterwards sent from British Guiana by Jenman and ee 
species was described under the name of Jenmania elata, Rolfe. Dr. 
Zahlbriichner then pointed out that the generic name had previously 
been given to a lichen, and changed the name to Rolfea elata. It has 
since been collected in Guiana by Im Thurn and in Trinidad by Lunt, 
the specimen of the former bearing a seed-pod much resembling that 
of Vanilla palmarum, Lindl. Lunt describes the lip as yellow with 
i ey agethnwe throat, and the other parts of the flower as bright red.— 
Fia. 1, nia and base of lip, seen from side same seen from front ; 
the f 
3, anther-case ; 4, pollinia ; 5, capsule. All Halogen except 5, which is of 
natural sees 
