144 
PACIFIC SCIENCE, Vol. Ill, April, 1949 
12(11). Leaves usually ternately verticillate 
as well as opposite, thickly coria- 
ceous; petioles 0.5 to 1 cm. long; 
blades 5 to 7 cm. long and 
1.2 cm. broad, lateral nerves ob- 
scure; inflorescence with ascending 
branches, flowers numerous and 
crowded. New Caledonia 
36. A. Legouixiae 
Leaves opposite (never ternate?); 
inflorescent branches spreading.... 13 
13(12). Lateral nerves of leaves straight, hori- 
zontal, 22 to 30 pairs; inflorescent 
branches filiform; calyx 0.7 to 1.4 
mm. broad below lobes, the lobes 
0.6 to 1 mm. long; anthers 0.7 to 
0.8 mm. long. New Caledonia 14 
Lateral nerves of leaves arcuate, 11 
to 22 pairs; inflorescent branches 
usually stouter, calyx larger; an- 
thers 0.9 to 1.6 mm. long. Fiji to 
Society Islands 16 
14 ( 13). Corolla lobes narrowly lanceolate to 
oblong-lanceolate, 2.8 to 5 mm. 
long and 0.8 to 1.3 mm. broad 15 
Corolla lobes broadly ovate, 2.2 to 
2.4 mm. long and 2.2 to 2.8 mm. 
broad 
35b. A. Lenormandi var. lanceolifera 
15 ( 14). Leaves chartaceous, rounded or 
slightly retuse at apex, the reticu- 
lation manifest 
35. A. Lenormandi (typical) 
Leaves coriaceous, obtuse to slightly 
acuminate at apex, the reticula- 
tion obscure 
35a. A. Lenormandi var. coriacea 
16(13). Leaf blades 5 to 15 cm. long and 
2.5 to 6 cm. broad, usually obtuse 
or rounded at apex; inflorescence 
usually few-flowered; calyx lobes 
ovate, 0.9 to 1.6 mm. long; seeds 
7 to 10 mm. long, tails 2 to 4 mm. 
long. Fiji and Samoa 17 
Leaf blades 9 to 21 cm. long and 1.5 
to 10 cm. broad, usually abruptly 
and sharply long-acuminate at 
apex; inflorescence usually many- 
flowered; calyx 1.2 to 2 mm. broad 
below lobes, the lobes ovate-lance- 
olate, 2 to 3 mm. long; seeds 4.5 
to 7 mm. long, tails 1 to 3 mm. 
long. Society Islands and Marque- 
sas 33. A. co st at a 
17 (16). Calyx 1.4 to 2.6 mm. broad below 
lobes; inflorescence without fili- 
form branches 
32. A. montana (typical) 
Calyx 1 to 1.3 mm. broad below 
lobes; inflorescence with filiform 
spreading branches and pedicels.... 
32a. A. montana var. filiformis 
Section not known 
Corolla lobes with right margins overlapping; 
ovary characteristically ridged, style very 
short, ovules in two ranks in each cell; 
leaves 4- verticillate, petioles 2 to 4.5 cm. 
long, blades 8 to 16 cm. long, lateral nerves 
numerous (35 to 60 pairs) and close, reti- 
culation not clear. New Caledonia 
39. A. quaternata 
§ WINCHIA 
This section is monotypic. 
1. Alstonia glaucescens (K. Schum.) Mona- 
chino, comb. nov. 
Alyxia ? calophylla Wall., Num. List. no. 
1607. 1829. -nom. nud. 3 
Alyxia glaucescens G. Don, Gen. Sys. of Gard. 
4: 97. 1837 (as to cit.); non. Wall, in 
Roxb., FI. Ind. 2(ed. 1): 542. 1824. 
Winchia calophylla A. DC, Prod. 8: 326. 
1844. 
Winchia glaucescens K. Schum., in Engl, and 
Prantl, Pflanzenf. 4(2): 125. 1895. 
Alstonia rostrata C. E. C. Fischer, in Kew Bui. 
1929: 315. 1929. 
Alstonia p achy carp a Merrill and Chun, in 
Sunyatsenia 2: 98. 1934. 
Trees up to 25 m. tall and 80 cm. in diameter. 
Leaves 3- or 4-verticillate, the petioles 1.5-3 
cm. long, the blades elliptic, 9-13 (—20) cm. 
and 3-5 cm. broad, bluntly acuminate at apex, 
shining above, slightly paler beneath, not glau- 
3 There is some, variance among authors in the pre- 
cise usage of the designation nomen nudum. It is here 
used in its broadest definition, as suggested in the 
Index Analytique of the 1906 ed. of the International 
Rules: "noms publies sans diagnose imprimee ou 
sans son equivalent.” Merrill, A. C. Smith, Rehder, 
Pennell, Kobuski, and many others have referred to 
the well-typified names appearing in Wallich’s Num. 
List as nomina nuda. Other botanists recommend that 
these names of Wallich be designated hyponyms, the 
term nomen nudum being reserved for mere names 
that appear without reference or any characterization 
whatsoever. 
