24 IV. ANONACEiE. [MUrephom. 



only starainate. Sepals minute, about 1 line long, nearly deltoid, membranous. 

 Petals black-purplish, somewhat curved inwards, 2 or 3 lines long ; outer ones 

 almost orbicular and nearly sessile, the inner ones considerably longer than the 

 outer, roundish or obeordate-rhomboid, attenuated into a stalk-like base, bicallous 

 above the middle inside, all as well as the sepp.ls downy on the outside, and valvate 

 in the upper part before expansion. Head of stamens rather depressed. Anthers 

 numerous, broadly cuneate, truncate, almost sessile ; connectives dark, their flat 

 summits forming an even surface for the head of stamens ; cells pale. Torus 

 very convex, velvety-hairy. Fruit unknown. 



Hab. : Mossman Eiver.— Collected by Saj/er and. Froggatt. 



In the absence of pistils it remains uncertain whether this interesting plant should be placed 

 in the genus Mitrephwa or Goniothalamus ; but it is not dissimilar to M. reticulata, differing in 

 glabrous more distinctly petiolated leaves, in fewer and larger flowers, and in dark-coloured 

 petals, the inner quite blunt. In some respects it reminds of the Oroplieas, particularly O. zey- 

 lanica, though the stamens are so different. — F. v. M. in Austr. Journ. of Pharmacy, Jan. 1887. 



7. HAPLOSTICHANTHUS, F. v. M. in Vict. Nat. 1891. 



Sepals 3, deltoid, early valvate ; petals 6, uniseriate-valvate in bud, completely 

 connate towards the base, thus forming a 6-lobed corolla, 3 of the lobes deltoid, 

 3 doubly as long and almost semi-elliptic, all remaining much connivent ; torus 

 depressed ; stamens about 30, of pyramidate-cuneate, their connectives at the 

 summit slightly convex, or almost truncate and somewhat peltate, concealing the 

 cells ; ovularies 6, with sessile depressed stigmas ; fruit unknown. Shrub with 

 comparatively small chartaceous leaves, and with short-stalked, solitary, dark- 

 coloured flowers of remarkable smallness. 



This new Anonaceous genus seems best placed in the tribe of Mitrephorece, but it agrees with 

 the otherwise very different Hexalobus in the downward conspicuously-connate petals. As regards 

 the 6 petioline parts, placed in a single row, this plAnt seems to stand alone in the whole order, 

 large as it is. The circumscription, however, of many of the genera needs revision also in this 

 order, as much new material has been obtained during later years, affecting the generic limits as 

 drawn formerly. The style and stigma offer good notes for primary distinctions also. — F.v.M.l.c. 



1. H. Johnsoni (after S. Johnson), F. v. M., Vivt. Nat. 1891. Young 

 branehlets thinly pubescent. Leaves almost sessile, rather narrowly lanceolate, 

 acuminate, but at the base obliquely rounded, when young scantily beset with 

 appressed hairlets, subsequently glabrescent, paler green beneath, from 1 to 3in. 

 long, j to nearly lin. broad, thinly venulated. Peduncles recurved, measuring 

 at flowering time -J-in. or less, occasionally supported at the base by a spinescently 

 indurated bud. Sepals about lein. long, pale-brown. Flowers as small as those 

 of Bocagea pisocarpa, Polyalthia moonii, and Popowia australis, measuring, even 

 when flattened out, only ^in. in diameter. Corolla outside beset with minute 

 appressed hairlets, the connate portion quite as long as the 8 deltoid lobes, without 

 any sutural indications ; the 3 longer lobes somewhat triangular at the summit. 

 Stamens only about ^in. long. Ovularies silky, during anthesis not emerging 

 beyond the stamens. — F. v. M. I.e. 

 Hab. : Mount Bartle-Frere, Stephen Johnson. 



8. MELODORUM, Dun. 

 (Leaves of one species honey-scented.) 

 Sepals small, united at the base. Petals 6, valvate in the bud in 2 rows, the 

 outer ones broad, thick, concave, connivent or scarcely open, the inner ones 

 smaller. Stamens numerous, the connective ovate or truncate, concealing the 

 cells. Torus convex or conical. Carpels several, with an oblong thick style 

 and 2 or more ovules in each, attached to the inner angle. Berries distinct, 

 sessile or stalked. Stems woody, usually climbing. Primary veins of the leaves 

 prominent underneath. Flowers terminal or leaf-opposed. 



