iei XXXVI. CELASTRINE^. [Siphomdon. 



2. S. pendulum (weeping), Bail. Bot. Bull. iv. (1891). Weeping Ivorywood 

 tree. " Aguridal," Palmer River, Roth._ A tree with a thick, rough, corky 

 outer bark on the trunk, the wood close-grained, when fresh yellowish ; the 

 branches dividing at their extremities into numerous long, slender, thong-Uke, 

 drooping branchlets. Leaves usually falcate, about 5in. long and seldom 

 exceeding lin. in breadth, obtuse or at times minutely apiculate, the texture thin, 

 almost membranous ; primary veins distant and very oblique, the veinlets 

 undulately anastomosing, but not prominent. Peduncles about lin. long, bearing 

 a few flowers at the end. (Flowers not forwarded). Fruit nearly globose, 

 2|- by 2in., on pedicels of about lin., spuriously 6-celled. Nuts irregularly ovate, 

 about 5 lines long and 3 or 4 lines broad, with a smooth but somewhat laounose 

 face, and when dry freer from the surrounding mealy substance than is the case 

 in .S'. austmle. Putamen hard and thick. Testa of seed brown. 



Hab.; Musgrave Electric Telegraph Station, Cape York Peninsula, Geo. Jacobson, who says 

 that the fruit is edible, and resembles in taste the common white guava (which it is not unlike in 

 size and appearance). 



Fruit eaten raw, Palmer River, Roth. 



This new species differs from S. australe in the texture and form of leaves, the pendulous 

 branches, the size of fruit, and in the figure of its wood. I think it may prove identical with 

 one growing in the scrubs of Tringilburra Creek, of which I, picked up fruit, but could not 

 identify the tree from which they had fallen. 



3. S. membranaceum (membranous), Bail. Ql. Agri. Journ. v. 388. A 

 tree of 60 or more feet in height, the branchlets rather slender and often deeply 

 striate. Leaves oblong-lanceolate, membranous in comparison with those of the 

 other Queensland species, 4 to 6in. long, 1 to Ifin. broad, the margins somewhat 

 wavy ; apex acuminate, slightly cuneate at the base ; petioles short. Flowers 

 small, few in axillary cymes. Fruit yellow, globose-turbinate, attaining a 

 diameter of 2in.; smooth, more or less sunk at the apex, and often deeply 

 6-sulcate, soft and the inner substance mealy, but if kept a few months becoming 

 quite hard as in the other kinds. 



Hab.: Evelyn, Herberton district, J. F. Bailey. 



Order XXXVII. STACKHOUSIEiE. 



Flowers regular, hermaphrodite. Calyx small, 5-lobed or 5-cleft. Petals 

 5, perigynous or almost hypogynous, with elongated claws, usually free at the . 

 base but united upwards in a tubular corolla, with spreading lobes, imbricate in 

 the bud. Disk thin, lining the calyx-tube. Stamens 5, inserted on the margin 

 of the disk ; filaments free, slender ; anthers oblong. Pollen grains smooth or 

 echinate. Ovary free, 2 to 5-lobed, 2 to S-eelled ; style single, with 2 to 5 lobes, 

 stigmatic along the inner side. Ovules solitary in each cell, erect, anatropous. 

 Fruit of 2 to 5 globular, angular, or winged indehiscent cocci, at length seceding 

 from the axis. Seeds solitary, erect ; testa membranous ; albumen fleshy ; 

 embryo straight ; cotyledons short ; radicle inferior. — Herbs, usually forming a 

 perennial stock, with erect, little branched, virgate stems, often assuming a 

 yellowish colour, rarely dwarf and tufted. Leaves alternate, narrow, entire, often 

 somewhat fleshy. Stipules none or very minute. Flowers in terminal spikes, 

 rarely solitary, with 3 minute or linear bracts (1 bract and 2 bracteoles) at their 

 base. Stamens included in the corolla-tube, of very unequal lengths. Pistil 

 almost always 3-merous. 



The Order is limited to two genera, almost endemic in Australia, one species extending to the 

 Philippine Islands, and another represented by a closely allied species in New Zealand. — Benth. 

 (in part). 



Petals perigynous. Filaments slender. Pollen-grains 3ub-4-lobed, echinate . 1. Stackhousia. 

 Petals almost hypogynous. Filaments very short. Pollen-grains ovate, very 



smooth 2. JlAci.uKOOiiiA, 



