Revision of Genus Alstonia — MONACHINO 
169 
coo Rv.; Bri); Mitchell 261 (type; K), 223 
(K), 268 (type coll. A. mollis ; fL; K); F. 
Mueller (bet. Burdekin and Burnett Rvs.; fl. 
and fr.; K); Murray 10 (Mt. Lookout; Bri); 
C. F. Plant (Charters Towers; Bri); Roe 26 
(Darling Downs; Bri); Simmons 9 (Fairy 
Bower; A); Tumbling ( Eulo; Bri); Thozet 
(Rockhampton; G); Trist 37, W eatherhead 
(near Benarkin; Bri); C. T. White (Darling 
Downs; Moreton; Bri), 9567 (Roma; A). 
New South W ales . — B o orman (Marrabri; 
Emerald; Lake Eliza; L, LJC, US ) ; Cleland 
(Moree; Bri); Cunningham 114 (Oxley; BM, 
K); Gandoger (Mo); Goodwin (Darling Rv.; 
K); Kenny (Childers; Bri); McDougall 
(Bourke; G); C. T. White (Rosewood; Bri), 
12702 (McIntyre Brook; Bri). 
Vernacular names. — Bitter Bark, Quinine 
Tree . 
A. constricta is described as having little or 
no latex in its bark, latex present in young 
shoots. Leaves somewhat pendulous. Flowers 
cream-yellow or white and sweetly scented. The 
plant is strongly trimmed by stock, and forms 
root-suckers. 
Type of A. mollis. — "Queensland. Barcoo 
river, near Mount Northampton, Mitchell 
Type of A. constricta var. montmariensis . — 
"Mount Maria, Warrego, FM.B., 1876; Eids- 
vold, T. L. Bancroft, 1911.” 
Pubescence and leaf width are entirely erratic 
characters in this species, having neither con- 
sistency in themselves nor concomitance with 
any other taxonomic feature or geographical 
distribution, and therefore cannot serve for even 
varietal segregation. Narrow leaves such as were 
used to characterize the var. montmariensis (6 
mm. broad) and much broader ones (2.5 cm.) 
are sometimes found on the same branch. Plants 
with softly villose leaves of the mollis type are 
often growing intermingled with the glabrous 
form. 
In his publication of var. mollis, Bailey made 
no mention of Bentham’s binomial A. mollis . 
He did not cite the type for his variety, and it is 
not clear whether a new variety or a reduction 
of Bentham’s species was intended. 
Bentham (1869: 314) notes concerning A. 
constricta : "This species differs from the rest 
of the genus, and approaches T abernaemontana 
in habit and foliage, and usually in the presence 
of small glands at the base of the calyx inside.” 
The species is markedly distinctive, but no 
vestige of intra-calycine glands has been de- 
tected by me. 
26. Alstonia lanceolata van Heurck & Muell. 
Arg., in van Heurck, Obs. Bot. 199. 1871. 
Petioles 0.5-1 cm. long; leaf blades char- 
taceous, lanceolate or elliptic, 10-13 cm. long 
and 1.5-3 cm. broad, narrowed and somewhat 
acuminate at apex, glabrous, the lateral nerves 
numerous, about 40 pairs, 2-4 mm. apart. In- 
florescence very sparsely and loosely flowered, 
the peduncles very short, about 1 cm. long, 
sparsely branched, pedicels up to 6 mm. long; 
corolla tube about 5 mm. long; corolla lobes 
somewhat shorter than corolla tube, about 4 
mm. long, well-pilose the entire face within, 
manifestly ciliate. Follicles 25 cm. long; seeds 
about 16 mm. long, slender-caudate at both 
ends, tails up to 5 mm. long. 
Type. — "Nova Caledonia ad Wagap: Vieil- 
lard 921 (in herb, van Heurck).” 
New Caledonia . — C ompton 1271 (Mt. Ka- 
nala; fr.; BM), 1719 (Ignambi; fl.; BM); Sch- 
lechter 15565 (Oubatche; fl.; G, K, L); Vieil- 
lard 921 (type coll; fl.; G, GH, K). 
27. Alstonia Vieillardi van Heurck & Muell. 
Arg., in Flora 53: 171. 1870. 
A. Duerkheimiana Schlechter, in Tropenpf. 
7: 528. fig., p. 529. 1903. 
Branches stout. Petioles 1.5-5 cm. long; leaf 
blades large, 9-36 cm. long, 4-22 cm. broad, 
usually acuminate at apex, softly pubescent be- 
neath, sometimes glabrous, dull above, the 
lateral nerves 16-22 pairs, 7-18 mm. apart. 
Inflorescence usually pubescent, the ultimate 
branchlets and pedicels adpressed or ascending, 
many-bracteate; flowers sulfur-yellow; corolla 
tube 8. 5-9.2 mm. long, minutely puberulent 
outside near middle; corolla lobes carnose, 
