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shorter than corolla tube, 3.5-8 mm. long, 
puberulent and short-pilose toward base inside; 
stamens inserted at about 1/3 from base of 
corolla tube. Follicles 21-30 cm. long; seeds 
7-9 mm. long, the tails short, less than 2 mm. 
long. 
Type. — "Habitat secus Toondu in Sinu Tupiti 
Nova Caledoniae: Vieillard 924 (in herb, van 
Heurck).” 
Illustrations.-— Tropenf. (1903) 7: 529 
(type of A. Duerkheimiana; br., in£L, fr., lvs., 
fl. analysis). 
Distribution. — New Caledonia — Compton 
817 (Dumbea; BM), 2010 (Comboui; BM); 
Deplanch e 67 (L); Franc (Prony; A), 44 
(Prony), 2450 (A); P anchor (K) ; Schlechter 
14867 (Paita; GH); Vieillard 924 (type coll.; 
fl., G, GH, L); C. T. White 2054 (Mt. Mou; 
A). 
The type of A. Duerkheimiana was not cited. 
Material determined as this species by Schlechter 
is available. The synonymy of A. Duerkheimiana 
with A . Vieillardi was discussed by A. Guillau- 
min (1911 b: 230). 
28. Alstonia Roeperi van Heurck & Muell. 
Arg., in Van Heurck, Obs. Bot. 201. 1871. 
Branchlets stout (7-10 mm. diam. ) , leaf scars 
large; leaves closely resembling those of A. 
Vieillardi but markedly shining above; petioles 
3-4 cm. long, fossate at axil; leaf blades 14-28 
cm. long, 3-15 cm. broad, usually acuminate at 
apex, sometimes obtuse to rounded, pubescent 
beneath, sometimes glabrous, the lateral nerves 
16-25 pairs, 1-2 cm. apart. Inflorescence with 
spreading branches, profusely flowered; corolla 
tube 3.7-4. 1 mm. long; corolla lobes oblong- 
lanceolate, 4.4— 5.7 mm. long, pubescence with- 
in sometimes extending from base to near apex. 
Follicles up to 22 cm. long; seeds 15-16 mm. 
long, the tails very long and slender, up to 8 
mm. long. 
Type. — "Nova Caledonia ad Wagap: Vieil- 
lard 922 (in herb, van Heurck).” 
New Caledonia. — Caldwell (Doumbea; K); 
Compton 671 (Mt. Dore; BM), 1518 (Ig- 
nambi ; BM ) ; Deplanche 66 ( K ) ; Franc 21 
(Dumbea), 42 (UC); Pancher (K); Schlech- 
ter 15445 (Oubatche; G); Vieillard 922 (type 
coll.; G); C. T. White 2038 (Mt. Mou; A), 
2162 (Dumbea; A). 
Collections of this species have been almost 
universally determined as A. plumosa. The 
identity of A. Roeperi with the latter is possible 
(see discussion under A. plumosa). 
29. Alstonia plumosa La Bill, Sert. Austr. 
Caled. 28. t. 32. 1824. 
Branchlets rather stout; petioles 6-12 mm. 
long; leaf blades elliptic, 2.5-11 cm. long, 1.2- 
3.5 cm. broad, rounded to obtuse or somewhat 
acute at apex, the lateral nerves about 15 pairs, 
arcuate and distantly spaced. Inflorescence 
crowded; corolla tube short; corolla lobes longer 
than corolla tube, oblong, pubescent within; 
stamens inserted below middle of corolla tube. 
Follicles 7-13 cm. long; seeds 24 mm. long, the 
tails long and slender, up to 9 mm. long. (Com- 
piled from original description and photo of 
type.) 
Type. — -La Billardiere, New Caledonia. 
Illustrations. — Type (leafy br. with infl. 
and fr.; fl. analysis; seeds). 
Specimen examined.- — Type (photo). 
The type is now deposited in the Institute 
Botanico dell’ Universita, R. Erabario Coloniale, 
Firenze, Italy. Known to me only from the 
original description and from a photograph of 
the type, I have failed to allocate the species. 
Of the New Caledonia Alstonia examined, A. 
plumosa is closest to A. Roeperi > of which I 
have seen the isotype and rather ample collec- 
tions. In maintaining this view regarding 
affinity, great reliance is placed on seed char- 
acter. The latter species, in fact, has been al- 
most universally distributed as La Billardiere’s 
plant. The name A. plumosa has also been 
widely applied to various species from Fiji and 
Samoa. The superficial appearance of the plant 
as seen in the plate might suggest a small-leaved 
glabrous form of A. vitiensis , A. Reineckiana 
or A. montana . (The seeds of the latter are 
