Buettneriacew.] 
THE COLONY OE VICTORIA. 
145 
In its tendency to a longitudinal dehiscence of the anthers L. dasyphyllum agrees with L. micranthum 
(J. Hook. FI. Tasm. i. 51). This character, which perhaps in aged states of other species may also he 
observed, breaks the main barrier by which Rhynchostemon was separated from Lasiopetalum, which two 
genera consequently should be combined. The presence or absence of petals in species of the. allied genus 
Thomasia renders the distinction of Rhynchostemon and Lasiopetalum on these grounds inadmissible. It may 
be worthy of record that the,length of the strophiole in species of this genus is subject to considerable 
fluctuations ; thus specimens of a Lasiopetalum from S.W. Australia, seemingly referable to L. indutum, 
show laciniee of the strophiole longer than the seeds. 
» CORETHROSTYLIS. 
Endl. in Nov. Stirp. Mus . Vinclob. JDecad. p. 1. 
Calyx ebracteolate or provided with a simple rarely double bracteole , corollaceous, membranous, 
persistent, five-cleft. Petals 5, minute, scale-like, opposite to the stamens, or wanting. Stamens 5, 
alternate with the lobes of the calyx, free. Filaments short, linear-subulate. Anthers affixed at the 
inner side, ovate or oblong, opening by two terminal pores . Staminodia none. Ovary three-celled. 
Ovules usually 2 in each cell, collateral, ascending from near the base of the central angle. Style 
setaceous, retro-hispid by fasciculate deciduous hair. Stigmas 3, very minute. Capsule enclosed in 
the calyx, three-celled, bursting by loculicidal dehiscence. Seeds 1 or 2 in each cell, ascendent, 
subovate. Testa downy. Mesocarp subcrustaceous. Strophiole lobed. Embryo straight, placed in 
the axis of the fleshy albumen. Cotyledons almost orbicular, flat, as long as the cylindrical inferior 
radicle. 
Star-hairy shrubs, very sparingly dispersed over the southern litoral but rather frequently over 
the south-western tracts of Australia. Stipules wanting. Leaves coriaceous or herbaceous, flat, alter¬ 
nate or rarely almost opposite, entire, repand or sinuated. Cymes simple or compound, usually race¬ 
mose, opposite to the leaves, with solitary bracts and entire sometimes petaloid bracteoles. Flowers 
white or pink. Capsule comparatively small, with one or the other cell sometimes vacuous. Seeds 
black.— Endl. Gen. 997; Steetz , inLehm. Plant. Preiss. ii. 317. 
Asterochiton (Turcz. in Bulletin de la Society Impdriale des Naturalistes de Moscou, 1852) is 
probably referable to this genus, differing according to the quoted description in a five-celled ovary 
and smooth style, notes which are of no avail for generic discrimination in the closely allied genus 
Lasiopetalum. The inflorescence is, however, reduced to solitary flowers, and the fruit, which as yet 
remains unknown, may possibly exhibit generic distinctions. The ambiguous Corethrostylis cordifolia 
(Steetz, in Lehm. PL Preiss. ii. 344; Lasiopetalum cordifolium, Endl. in Enum. Plant. Hueg. p. 10) 
obliterates the line of demarcation between this and the preceding genus. It seems, however, notwith¬ 
standing the absence of petals, best consociated with Lasiopetalum, on account of a less petaloid calyx 
and of the development of an hypocalycine bracteole, although the latter not always exhibits the normal 
trisected form. C. microphylla (Turcz. in Bullet. Mosc. 1852) seems a variety of C. cordifolia. 
Corethrostylis Schulzenii, F. 31. in Transact. Phil. Soc. Viet. i. 36. 
Leaves herbaceous, repand or entire, usually broad-cordate, on both pages star-hairy; cyme starry 
tomentose, mostly compound; bracteoles close under or near to the calyx, as well as the bracts linear-filiform; 
calyx large, whitish or pale pink, longer than the pedicel; its lobes ovate-semilanceolate, inside almost 
glabrous; petals existing; ovary glandless , white-tomentose; style except at the apex copiously conspersed 
with retroversed fasciculate hair; capsule outside thinly star-hairy; strophiole hardly half as long as the 
seed. 
T 
