Revision of Genus Alstonia — MONACHINO 
155 
dehiscing almost to base; follicles glabrous; 
seed faintly muricate-roughened. 
Cotypes cited. — ' Hab. in Australasia, ad 
oras tropicas; nempe Endeavour River, supra 
littus orientale, necnon littora septentrionali- 
occidentalia, Montagu Sound, etc. 1820 A. 
Cunningham . ( v.v. ) 
Lectotype.— -Cunningham 206, Australia, 
Montague Sound (Gray Herbarium). 
Illustrations.— Schimper, Pflanzen-Geogr. 
(1898) 353 (as "A. verticillata”\ br. and pe- 
tioles only). 
Distribution. — Northern Australia and 
southern New Guinea. Often common in 
tropical scrub, rain forests, and savannas. 
Australia: Queensland: Bailey 148 (Ham- 
mond Island; Bri); Cowley 13 (Cooktown; 
Bri); Cunningham 378 ( cotype coll. Alyxia 
actinophylla; Endeavour Rv.; K) ; Daemel 
(Cape York Penins.; K) ; Hill 67 ( Albany Is.; 
K) ; Norton (Cooktown; Bri) ; Persich 31 
(Endeavour Rv.; Bri); Thurston 3996 (Bri); 
Whitehouse (Cape York Penins.; Bri). North- 
ern Territory: Armstrong 372 (Port Essing- 
ton; K) ; Mueller (Roper Rv.; K) ; Schultz 
(Port Darwin; K) . Western Australia: Cun- 
ningham 206 ( cotype coll. Alyxia actinophylla\ 
Montague Sound; GH, K). 
New Guinea: Papua: Brass 8282 ( Gaima; 
A), 7940 (Lake Daviumbu; A). Netherlands 
New Guinea: Koch ( Merauke; L), Versteeg 
279 (Merauke; L). 
Type of A. verticillosa. — "Ad promontorium 
Cape York; Daemel.” 
§ BLABEROPUS 
Shrubs about 8 m. or less tall, sometimes 
dwarf. Glands at axils of leaves numerous, 
deltoid to linear, up to 3 mm. long; pedicels 
distinct, long, 5-15 mm. long. Calyx about 
2 mm. diam., glabrous or sparsely pubescent 
outside like the inflorescence, the lobes ovate 
to ovate-lanceolate, acute or sometimes obtuse 
at apex, about 1-2 mm. long (lanceolate- 
acuminate and up to 3.5 mm. long in A. 
yunnanensis) , margins thin; corolla glabrous 
outside (some scattered hairs present in A. 
yunnanensis) ; anthers dehiscing their entire 
lengths; ovary superior, glabrous, the disc with 
lobes 0.7-2 mm. long, varying in length; 
style long and slender; stigma-apiculi about 
0.5 mm. or less long; follicles short, about 15 
cm. or less long, glabrous; seeds about 7-11 
mm. long and 2-4 mm. broad, thin, the sur- 
face minutely foveolate and smooth (seeds 
rather thick and muricate in A. yunnanensis ) , 
the cilia about 0.5-1 cm. long. 
The species in this section are known from 
India to China and java. In general they pre- 
fer high altitudes, and are rare and localized. 
Specimens are poorly represented in herbaria, 
and are generally very difficult to distinguish; 
fruits as well as flowers are important for pre- 
cise identification. 
9. Alstonia venenata R. Br., in Mem. Wern. 
Soc. 1: 77. 1811. 
Echites venenata Roxb., Hort. Beng. 20. 
1814. — nom. nud. 
Blaberopus venenatus A. DC., Prod. 8: 411. 
1844. 
Shrubs 2-3 (-7) m. tall. Petioles 1-2.5 cm. 
long, leaf blades more or less elliptic, usually 
broadest slightly above the middle, 6-22 cm. 
long and 2-5.5 cm. broad, the lateral nerves 
70-100 pairs, 1-3 mm. apart. Calyx lobes 
ciliate, otherwise glabrous; corolla tube 2-3 
cm. long; corolla lobes 1-2 cm. long; anthers 
1.8-2. 5 mm. long; lobes of disc linear-lanceo- 
late, 1.5-2 mm. long; stigma-apiculi very short 
and blunt; follicles 6-13 cm. long and 6-7 
mm. diam., the slender stipes 1.5-3 cm. long. 
Type. — "India Orientali, Gul. Roxburgh, 
M. D. (v.s. in Herb. Banks) .” 
Illustrations. — Lodd Bot. Cab. (1826) 
12: t. 1180 (veg., fls.) ; Wight, Illustr. Ind. 
Bot. ( 1850) 2: t. 154-6, E (as A. scholaris\ 
fl. analysis, seed, embryo; obviously § Blabero- 
pus, prob. A. venenata) ; Wight, Ic. PI. Ind. 
Or. ( 1843) 2: t. 436 ( veg., fls., frs.; follicles 
better represent those of A. neriifolia, as they 
are not stipitate ) . 
Distribution. — Native to India; probably 
