Alectryon — ST. John and FREDERICK 
299 
5-10 mm. thick, at apex 2-3 mm. thick; aril 
fleshy, scarlet, edible, "resembling peach in fla- 
vor” ( fide Degener), shrivelling to a crown on 
the distal end of the single seed; seed 19-30 
mm. wide, 9-12 mm. high, at hilum or proxi- 
mal end shield-shaped, concave, hard and pol- 
ished, dark brown, the testa scarlet, shiny, the 
distal end bearing the aril is produced into short 
spine-like processes. 
Type: Hawaiian Islands, Oahu: Puu Kanehoa, 
South Huliwai Gulch, 2,100 ft. elev.; in open 
forest with Neraudia sp., Fagara semiarticulata, 
and Planch onella sp.; tree 30 ft. tall, 6 in. in 
diameter; Aug. 21, 1947, L. Frederick & K. Sa- 
kimura 185 (fl. fr.) (Bishop Mus. ) . 
Specimens Examined ( the list of specimens is 
arranged in geographical order from north to 
south; abbreviations — b.=bud, fl =flower, fr.= 
fruit): Oahu, Waianae Mountains: Makua Va- 
ley, southeast corner, on moderately dry forested 
slope, Sept. 27, 1932, O. Degener & C. Judd 
9538 (fr.); Mokuleia Trail, alt. 2,100 ft., tree 
22 ft. tall, 4 in. in diameter, open forest, July 
13, 1947, L. Frederick 183 (b.); Mokuleia, 
near head of right branch of Pahole ( Kukuiula ) 
Gulch, moist forest, alt. 550 m., April 12, 1936, 
F . R. Fosberg 13069 (fr.); Mokuleia, left 
branch, slopes of Kaala, April 26-May 16, 1912, 
C. N. Forbes 1768-0 (fr.); Makaleha Valley, 
west side of, dense forest near stream, first dis- 
covery of staminate flowers, July 21, 1935, 
O. Degener et al. 10906 (fl.); Makaleha (or 
"pali of Kalaupapa, Molokai” — but this a con- 
fusion of data), W. Hillebrand & J. M. Lyd- 
gate; Kamokukui Valley (between Puuiki and 
Puu Kamaohanui ) , large forest tree, April 12, 
1933, O. Degener 9535 (fr.); Mt. Kaala, base 
of, near end of Schofield Fire-Break Trail, dense 
wet forest, 4 trees seen up to 35 ft. high, March 
13, 1932, 0. Degener et al. 9537 ; Puu Kaala, 
Waianaeuka, wooded gulch, 2,000 ft. alt., tree, 
Jan. 8, 1933, H. St. John & J. Dunn 12920; 
Puu Kalena valley S. of E. ridge of, moist 
forest, alt. 750 m., tree 7 m. tall, March 22, 
1936, F. R. Fosberg 12987 (fr.); Puu Kumaka- 
lii, northeast slope of, forest, April 1, 1936, 
O. Degener 11111; Kanehoa, Honouliuli, el. 
700 m., tree, 7 m. in height, steep north slope, 
Oct. 25, 1927, C. S. Judd 66 (fl.); Kanehoa, 
Oct. 1929, G. W. Russ (b. fr.); Ekahanui, rich 
forest, April 21, 1936, O. Degener & M. Mar- 
tinez 11108 (b.), 11109 (b.); South Fork of 
Ekahanui Gulch, Puu Kaua, Honouliuli, 2,300 
ft. alt., wooded ridge, young tree 4 m. X 5 cm., 
Feb. 27, 1938, H. St. John 18684 (fr.); Eka- 
hanui Gulch, Fire-Break Trail, Puu Kaua, Ho- 
nouliuli, 1,760 ft. alt., lower forest remnant, 
tree 6 m. X 8 cm., Feb. 29, 1948, H. St. John 
23356 (fr.). 
Waianae Range, without data: O. Degener 
(fr-)- 
There was also a collection from second 
gulch E. of Puu Kaupakuhale, N.E. slope of 
Puu Kaala, Mokuleia, Oct. 23, 1932, St. John 
& Fosberg 12144 (fr.), but this specimen can- 
not now be located. 
The published record (Hosaka, 1937: 224) 
of this tree from Kipapa Gulch is the only 
record for the Koolau Range. This rests only 
on a field observation, as the single large tree 
was never seen in flowering or fruiting condi- 
tion. 
Although there are numerous collections of 
this new species, most of them show only fruit 
or flower. The collection Frederick & Sakimura 
1 85 is chosen as the type because it has foliage, 
numerous flowers, and three good fruits, all 
taken from a single tree. 
The new species, A. Mahoe, is being separated 
from A. macrococcus Radik, which was based 
on the material collected by Hillebrand and on 
the description of his probable new genus, 
Mahoe. Hillebrand had made a collection on the 
"pali of Koolaupapa” [precipice of Kalaupapa], 
Molokai, consisting of leaves with old fruit of 
the previous year; and he had another collection, 
with leaves only, from Makaleha Valley, Oahu. 
Lacking flowers and complete material, he con- 
servatively put a question mark beside his new 
generic name and refrained from publishing a 
specific name. Having only this same incom- 
plete material, Radlkofer gave it a specific 
