2 
ledge of the flora of the island for the use of students either in 
residence there or at other institutions, and it is hoped that such a 
descriptive flora may be prepared in co-operation with the botanists 
of the Government at no distant date. In order to accomplish this, 
supplying much needed material through the collecting trips of 
Mr. William Harris, Superintendent of Hope Gardens, but his valu- 
able time for this purpose is naturally limited and should be sup- 
plemented by the work of other collectors i in order that the infor- 
mation necessary may be more rapidly obtained. 
References to specimens and their salieetors | have been restricted 
for the most part to work of the last few years, the older speci- 
mens being comprehensively cited by Mr. C. B. Clarke in his 
monograph. 
KEY TO THE ya gee OF JAMAICAN CYPERACEAE. 
A. Fertile flowers perfec 
a rs sal empty a. of the spikelets none, or not more than 
ee of the spikelets distichous 
Spikelets with only one per- 
fect flower 
Spikelets with 2 to many per- 
fect flowers 
Scales spirally imbricated (appa- 
ey distichous in Abildgaardia) 
ase of the style persistent as 
a tubercle on the achene 
Spikelet I: bristles of the pe- 
rianth suits present; culms 
leafles 
_ 
. Kyllinga 
i) 
. Cyperus 
Eleocharis 
_ 
aileelotn several or numer- 
ous; bristles none; culms 
oO 
© 
oh 
ig 
O 
© 
aS% 
. Stenophyllus 
Base of the style not persistent as 
a tubercle 
Flowers with no_ broad 
sepals nor perianth-scales 
Base of the style swollen; 
perianth-bristles none 
Scales of the nearly 
terete spikelets spirally 
imbricated 
Scales of the distinctly 
flattened “apie sub- 
distichou 
Base of the style not 
swollen; bristles usually 
present 
Bristles 8 or es 
short, rarely n 
Bristles mh eo long- 
. Fimbristylis 
wn 
ON 
. Abildgaardia 
Scirpus 
oS 
exser . Eriophorum 
Flowers ‘ait a perianth of 3 
_ broad sepals 9. Futrena , 
