1899 | NEW NORTH AMERICAN TREES 87 
length at the base of the panicle to an inch and a half in length 
at the apex, bright orange colored like the short secondary 
branches. Flowers opening in June and occasionally also irreg- 
ularly in November; the fruit ripening six months later. 
Thrinax Keyensis inhabits the north shore of the largest of 
the Marquesas group of islands about fifteen miles west of Key 
West, where it was first seen by me in November 1886, but 
without flowers or fruit, and where there are several large 
groves; it grows also on Crab Key, a small island to the west- 
ward of Torch Key, one of the Bahia Honda group. It is this 
plant which I referred to Eururinax (Garden and Forest 
9: 162; Silva 10: 50), with the mistaken idea that the large 
black fruit which I had gathered on the Marquesas in 1886 had 
been produced by this tree. Seeds of Thrinax Keyensis were dis 
tributed from the Arnold Arboretum in December 1898 as 
Thrinax no. 3. 
THRINAX MICROCARPA Sargent, Garden and Forest 9:162. 
1896 ; Silva 10:53. ‘pl. srr. 
This tree, which is the commonest and most generally distrib- 
uted species on the south Florida keys, is correctly figured in 
the tenth volume of The Silva, except the fruit, which, until 
recently, I supposed to have an orange-brown crustaceous peri- 
carp. It differs from Thrinax Keyensis in its taller and more 
slender trunk without a basal enlargement, in its shorter spadix 
and smaller fruit with darker colored seeds, and in its smaller 
and thinner leaves. The structure of the flower and fruit is 
identical. This is the Thrinaz argentea of Curtiss’s distribution 
(no. 2679), but not of Loddiges, which belongs to another genus. 
COCCOTHRINAX, n. gen. CoRYPHE#. 
: ah gee Endlicher, Gen. 253. 1836 (in part). Martius, Nat. Hist. Palm. 
(in part). Bentham & Hooker, Gen. 3:930. Drude in Engler & 
a Pllanzenfam. 11. 3:34 (§ EuTHRINAX). Baillon, Hist. Pl. 13:317 (in 
part). Sargent, Silva 10:49 (§ EUTHRINAX.) 
Flowers perfect, solitary, minute, articulate on slender pedi- 
cels j : 3 
in the axils of ovate acute caducous bracts. Perianth cupu- 
