Revision of Genus Alstonia — MONACHINO 
175 
are stouter, calyx broader, corolla lobes broader 
and relatively shorter; the seeds (up to 10 mm. 
long) and tails (up to 3 mm. long) are longer. 
The difference, however, is not substantial 
enough to permit any segregation without 
further validation. F. B. H. Brown ( 1935: 233) 
stated that he observed A. costata in the Mar- 
quesas only at high altitudes in the rain forest 
and that it was never more than 2 m. in height. 
34. Alstonia Deplanchei van Heurck & Muell. 
Arg., in Flora 53: 171. 1870. — excl. cit. 
462. 
Alstonia retusa S. Moore, in Jour. Linn. Soc., 
Bot, 45: 363. 1921. 
Petioles 0.5-1 cm. long; leaf blades oblan- 
ceolate, 3-4.5 cm. long, 1-2 cm. broad, retuse 
at apex, glabrous, the lateral nerves ascending, 
about 14 pairs, 2-3 mm. apart. Inflorescence 
short, sparsely flowered, the branches rather 
erect; corolla tube about 6 mm. long; corolla 
lobes oblong, about 2.5 mm. long, very faintly 
pubescent outside with short adpressed hairs, 
pilose toward base within; stamens inserted at 
about one-third from base of corolla tube. 
Follicles about 5 cm. long; seeds 7 mm. long, 
the tails very short, their forks close to body 
of seed. 
Type. — Deplanche 462 bis, New Caledonia, 
Pum. 
New Caledonia. — Compton 2363 (type A. 
retusa\ photo); Deplanche 462 bis (type coll.; 
fl. and fr.; BM, G, L, NY). 
Under A. Deplanchei, " Deplanche 462, 462 
bis” were originally cited. The former speci- 
men belongs with A. Lenormandi, but the de- 
scription is obviously of the latter: "folia 
numerosa . . . cuneato-obovatis . . . emarginato- 
retusis . . . cymis parvis contractis subpauci- 
floris . . . tubus corollae 5 mm. longis . . . lobis 
tubo 24 ^-plo brevioribus . > . corollae tubo 
fere ad trientem altidinis paulo latere et stami- 
nigero . . In van Heurck (1871: 180) A. 
Deplanchei is clearly distinguished from A. 
Lenormandi . As the two elements represented 
by Deplanche 462 and 462 bis are not entirely 
discordant, and particularly since the original 
description of A. Deplanchei unmistakably 
typifies the species, I do not reject the name as 
a nomen confusum. 
Type of A. retusa. — "Poume: serpentine 
scrub; 500 ft., 2363” R. H. Compton, New 
Caledonia. Only photo of type seen, but it 
appears identical with type of A. Deplanchei. 
35. Alstonia Lenormandi van Heurck & 
Muell. Arg., in Flora 53: 172. 1870. 
A. filipes Schltr. ex Guillaumin, in Ann. Mus. 
Col. Marseille, Ser. 2, 9: 195. 191 1.- — nom. 
nud. 
Branchlets slender; petioles 1-2 (-6) cm. 
long; leaf blades 5-8 (-18) cm. long, 2.5- 
5 (—11) cm. broad, rounded or slightly retuse 
at apex, glabrous, the lateral nerves horizontally 
spreading, 22-25 (-30) pairs, about 5 mm. 
apart. Inflorescence with slender peduncles, 
branches filiform and spreading, pedicels 
slender; calyx minute, 0.7-1. 4 mm. diam. below 
lobes; calyx lobes 0.6-1 mm. long; corolla tube 
2.3-3 mm. long; corolla lobes narrowly lan- 
ceolate to oblong-lanceolate, 2.8-5 mm. long, 
pubescent toward base within; anthers 0.7-0.8 
mm. long; style short, 0.25-0.5 mm. long. 
Follicles 6-9 cm. long; seeds 6-12 mm. long, 
the tails short, their forks close to body of seed. 
Type. — "Nova Caledonia ad Kanala, baie 
d’Urville, ubi legit oculatissimus Vieillard 919, 
et unde communicavit amicissimus Lenormand. 
(in herb, van Heurck).” 
Distribution. — New Caledonia; reported as 
frequent in serpentine scrub, altitude 150 m. 
New Caledonia: Compton 883 (Baie Kua- 
kue; BM; approaches var. coriacea)\ Deplanche 
462 (Port-Boise; fl. and fr.; G, K, L), 919 
(type coll.; fl. and fr.; G, GH, L, NY); Franc 
235 (serie A; Prony; type coll. A. filipes\ fl.; 
A, G, GH, K, L, NY, UC, US), 2214 (fl. atypi- 
cal, corolla lobes short and broad; UC); 
Gandoger (Prony; Mo); Vieillard 2947 
(Gatope; K). 
Type of A. filipes. — Guillaumin cited Franc 
235. Several different collections annotated as 
A. filipes by Schlechter are available. 
