Hawaiian Flora — Stone 
553 
the petals to be entire or essentially so.” While 
agreeing that some minor variation in petals 
does occur it should be added that this is not 
of any great importance. In short, the discrimi- 
nation of species is made on the leaf characters 
alone. 
Knowing the somewhat cultivated nature of 
the Hawaiian kukui, and having now a reason- 
ably accurate radio-carbon date from archaeol- 
ogy that shows that the Hawaiian Islands were 
probably populated rather less than 2,000 years 
ago, I find it unlikely that A. remyi can be con- 
sidered an endemic native Hawaiian species. In 
addition, the examination of flowering material 
of many specimens of A. moluccana, including 
the Kauai High School form, fails to reveal any 
additional differentiating characters. In conclu- 
sion, it appears preferable to treat these forms 
as subspecific taxa and to suggest that, in fact, 
they are of aboriginal Hawaiian selection. 
The Hawaiian kukui trees, then, can be ar- 
ranged as follows: 
Aleurites moluccana (L.) Willd. (syn. A. tri- 
loba Forst.) 
(1) var. moluccana. This is the common 
form not only in Hawaii but elsewhere in the 
range of the species. 
(2) var. remyi (Sherff) B. C. Stone, stat. 
nov. 
A. Remyi Sherff, Field Mus. Bot. ser. 
17:558, 1939; Am. J. Bot. 31:157, pis. 1-3, 
1944. 
holotype : Remy 600, pro parte (3 sheets, 
Paris). Although this may be from Kauai, the 
locality at present known is North Kona, Ha- 
waii. As a common name "Remy’s kukui” is 
suggested. 
(3) var. katoi Degeners and Stone. 
The formal description of this variety will 
appear in the Flora Hawaiiensis, vol. 7. It is 
named for Mr. Tadayuki Kato of Kauai High 
School, who has been very helpful to me and 
to other visiting botanists. The holotype speci- 
men, taken from the tree on the grounds of 
Kauai High School in Lihue, is at the Bishop 
Museum ( Stone 3427, collected on 15 April 
I960). A further specimen collected by Dr. 
Degener is also available. A suitable common 
name would be "Kato’s kukui” or, alternatively, 
the "mango-leaved kukui.” 
ARALIACEAE 
A Recent Collection of Munroidendron 
racemosum 
The genus Munroidendron Sherff (Bot. Leafl. 
7:21, 1953; Am. J. Bot. 43:47 6, 1956) is of 
particular interest because it is endemic in Ha- 
waii, consisting of a single species which is 
very rare. It was rediscovered a few years ago 
by Tadayuki Kato, of Kauai, and a small col- 
lection was made later by a party (the writer, 
with William Stern and Sherwin Carlquist) that 
found Munroidendron in the Nonou Range not 
far from the Wailua River, Kauai, on the west 
side at about 700 ft alt. in the second valley 
from the south end of the range. The trees 
were leafless at the time (16 August 1961), but 
were in flower, the long racemose inflorescences 
hanging from the rather thick bare branches. A 
photograph was taken but is not particularly 
good (Fig. 2). The specimen ( Stone 3768) is 
in the Bishop Museum. The single tree seen 
was on a relatively steep arid slope facing west, 
Fig. 2. Munroidendron racemosum (Forbes) 
Sherff; habit of a tree on Nonou Mountains, Kauai 
(Stone 3268). 
