Polynesian Species of My op or um — Webster 
59 
glabrous without, glabrous or pubescent 
within, usually glandular-punctate. Stamens 
usually 4, rarely more, alternate with the 
corolla lobes; filaments subulate or terete, 
glabrous or pubescent, adnate to the corolla; 
anther sacs confluent. Ovary of various 
shapes, often conic-cylindric, usually 2-5- 
celled (rarely the cells more numerous) ; style 
simple, usually as long as or longer than the 
ovary; stigma convex, entire or obscurely 
2-5 -grooved (rarely bifid); ovules solitary or 
rarely paired in each cell of the ovary, 
anatropous, pendent from the apex of the cell. 
Fruit a fleshy drupe; endocarp bony, usually 
more or less subglobose but sometimes de- 
pressed or laterally compressed; seeds spindle- 
shaped, with scanty endosperm, the radicle 
superior. 
TYPE SPECIES: Myoporum laetum Forst. f., 
here chosen as lectotype for the genus. It 
should be noted that Forster attributed the 
authorship of the genus Myoporum to Solan- 
der alone, and not to Banks and Solander, 
as subsequent writers have incorrectly done. 
Section Pentacoelium (Sieb. Zucc.) A. 
Gray, Proc. Am. Acad. Sci. 6: 51-52. 1866. 
'Pentacoelium Sieb. & Zucc., Abh. Akad. 
Muench. 4(3): 151. 1846 (as a genus). 
Polycoelium (A. DC.) A. Gray, op. cit. (as 
a section). 
Eumyoporum Bentham, Flora Australiensis 
5: 2. 1870 (as a section). 
Insularia Kraenzlin, Fedde Repert. Sp. 
Nov., Beih. 54: 15-16. 1929 (as a section). 
Ovary mostly 2-4-celled; ovule, one in 
each cell. Drupe mostly subglobose, not 
strongly laterally compressed. 
KEY TO THE POLYNESIAN SPECIES 
This key is intended for use in determining 
specimens in flower and fruit. Sterile twigs 
from the base of a plant or from a wounded 
branch may sometimes have serrate and/or 
densely pubescent leaves very unlike the 
normal ones. Specimens of this unusual type 
should be accompanied by normal flowering 
branches if the correct determination is to 
be made. 
A. Style glabrous, or if hirsutulous then 2-3.5 mm. 
long and fruit not red-tinged. . . 1. M. sandwicense 
B. Style glabrous. 
C. Stamens usually 5 (less commonly 4 or 6); 
corolla glabrous or pubescent; leaves various, 
not elliptic-spatulate and abruptly acute 
2. ssp. sandwicense 
D. Leaves glabrous. 
E. Endocarp strongly depressed, not or 
scarcely ridged, the thick wall exceeding 
the cells in diameter. ... 5. var. lanaiense 
E. Endocarp of various shapes, often ridged, 
rarely strongly depressed, and then the 
wall thinner than the cells in diameter. 
F, Calyx lobes mostly 1-3 mm, long; corol- 
la often pubescent within; style mostly 
1.5-3 mm. long; drupe always greenish- 
white; endocarp 2-6 mm. long, 4-10- 
celled 3. var. sandwicense 
F. Calyx lobes mostly 3-5 mm. long; corol- 
la glabrous (or rarely sparsely pubescent) 
within; style mostly 3-5 mm. long; 
drupe sometimes pink or purplish; endo- 
carp 5-10 mm. long, 4-6-celled 
4. var, Fduriei 
D. Leaves pubescent. 
G. Hairs branched; branchlets pubescent; 
leaves lanceolate or elliptic-lanceolate . . 
6. var. stellatum 
G. Hairs unbranched. 
H. Branchlets glabrous; leaves often broad- 
ly elliptic, entire or remotely serrate. . 
7. var. Degeneri 
H. Branchlets usually pubescent; leaves 
lanceolate. 
I. Corolla not over 6 mm. long; style 
less than 3 mm. long 
var, sandwicense, pubescent form 
I. Corolla over 6 mm. long; style 3 mm. 
long or more var. Fauriei, 
pubescent form 
C. Stamens constantly 4; corolla densely pubes- 
cent; leaves elliptic-spatulate, abrubtly acute . . 
9. ssp. Wilder i 
B. Style hirsutulous; flower parts mostly 6-8; endo- 
carp usually 7-12-celled, often sharply ridged. . 
8. ssp. St.-Johnii 
A. Style hirsutulous (rarely glabrate in M. Stoke sii), 
4-6 mm. long; stamens 4; fruit pink or red; endo- 
carp 3-6-celled. 
J. Leaves entire; endocarp angled. . . 10. M. Stokesii 
J. Leaves serrate; endocarp not or scarcely angled. 
11. M. rapense 
K, Calyx lobes not ciliate . 12. var. rapense 
K. Calyx lobes ciliate 13. var, Skottshergii 
