l38 NOTES ON THE FLORA OF CEYLON. 



yellow, obovate-oblong, with two thick linear glands on the disk, 

 approaching each other at both ends, half the length of the central 

 lobe, smooth, spotted with purple. Wings of the column not 

 longer than the column, and embracing it in the front as well as 

 the sides, lanceolate, crenulate towards the end. Eostellum very 

 large. Stigma cordate, with orbicular gland at the base as large 

 as the rostellum. New South Wales. 



Pterostylis clavigera, sp. n. — A slender plant, about five 

 inches high. Leaves radical, ovate-acute to ovate-oblong, less than 

 half an inch long, on petioles of about the same length. Two 

 sheathing bracts on the flower-stem more or less leafy, and about 

 half an inch long. Flower solitary, narrow, half an inch long, 

 abruptly curved towards the end. Lateral sepals erect, filiform 

 from the sinus for three-quarters of an inch (that is, half their 

 length). Dorsal sepal acute. The petals, where seen below the 

 dorsal sepal, membranous, ovate, crenulate (as in P. pyramidalis). 

 Labellum linear, obtuse, smooth. Appendage linear, dilated at 

 the end into three pinnulate branches. Upper wing of the anther 

 acute, and bearing a large egg-shaped gland; the lower oblong, 

 obtuse. New South Wales. 



NOTES ON THE FLOEA OF CEYLON. 

 By Henry Trimen, M.B., F.L.S. 



The last Part of the late Dr. Thwaites' ' Enumeratio Plant. 

 Zeylaniffi' was published in 1864, and, besides completing the 

 systematic enumeration of the plants of Ceylon to the end of the 

 Vascular Cryptogams, contained two appendices (extending to 46 

 pages) of Addenda and Corrigenda, thus bringing the earlier 

 portions of the book (which began to appear in 1858) up to the 

 date of its conclusion. 



The numbered series of exsiccata, well known as " C. P.," had 

 been previously made up and widely distributed by Thwaites ; 

 their numbers are systematically quoted througliout the book, and 

 are, in the supplements above mentioned, carried on up to C, P. 

 3860 inclusive. 



After the completion of the ' Enumeratio ' the C. P. numera- 

 tion was still kept on, as new species or varieties were detected in 

 the Island, or as further research showed the necessity of breaking 

 up some of the previously recorded ones into two. In this way 

 164 additional C. P. numbers were given, and the series was 

 extended from C. P. 3861 to 4024, which number is absolutely the 

 last. 



Many of these additional numbers have been sent out from 

 Peradeniya to the public herbaria of Em-ope and Asia and to 

 private collections, and not a few have been quoted by authors of 

 recent monographs and descriptive treatises. It will therefore, I 

 believe, be of use to give a list of them with their determinations, 



