68 
PLANTS INDIGENOUS TO 
[ Violacea. 
likely could have remained unknown to the illustrious Geneve botanist. A glabrous Ionidium, very 
similar to I. suflruticosum, differing chiefly in hlunt pairs of petals, has been collected near Parramatta by 
W. Woolls, Esq. This may prove a mere variety of I. filiforme, which exceptionally is found with short 
one-flowered peduncles, the fruit of this plant being as yet unknown. An Ionidium, remarkable for its 
orange corolla, is of no rare occurrence in tropical Australia, and was also found by Aug. Gregory, Esq., on 
Cooper’s River. Whether it is a variety of I. suflruticosum or a definite species future observations will 
decide, From the latter plant is neither specifically to he distinguished the I. ramosissimum, Thvait. Enum. 
PI. Zeyl. i. 21. 
Zonidium floribundum, Lindl. in Mitch, three Exped. ii. 165 ; Annul. Scienc. Nat. xv. 57; 
Walp. Eepert. Bot. Syst. ii. 767; I. Australasia?, Behr in Linncca, xx. 629. 
Shruhhyor suffruticose, glabrous; leaves alternate, linear or lanceolate-linear, entire,recurved-pointed; 
stipules very minute or obliterated; peduncles short , cymosely fiem-fiorvered or two-fioivered, rarely one- 
jlorvered; bracts minute, ovate-lanceolate, opposite; sepals subovate, short-acuminate; paired petals ovate, 
subtruncate, nearly half as long as the ohcordate-cuneate pale-blue or wdfite labellum, about as long as the 
calyx; staminal glands blunt; anthers without a furcate appendage; stigma horizontal, ovate, laterally' 
short-acuminate; capsule few-seeded; seeds blackish, slightly tubercled; stropliiole about half as long as the 
seed; embryo cylindrical, shorter than the albumen ; cotyledons semiterete. 
On barren ridges and low stony or rocky ranges in the vicinity of the Murray River and of its lower 
tributaries; originally found by Sir Tli. Mitchell towards the Australian Pyrenees. Not rare through the 
scrubby lowland and mountain tracts of the Colony of South Australia from Guichen Bay to Spencer’s Gulf; 
seemingly local in Western Australia, where it exists near King George’s Sound, and where it was found by 
Mr. A. Oldfield near the Rivers Harvey and Murchison. 
An everflowering shrub, attaining 1 a height of 5 feet, although remaining generally' more dwarf, often 
flowering already' as a yearly' seedling’. Branches angular, somewhat spreading’ or ascendent. Leaves rather 
crowded, one-nerved, generally' from 1| inches long, §-3 lines broad, sessile, slightly thickened or revolute 
at the margin. Stipules linear-subulate, generally shorter than J line. Primary peduncles often less than 
3 lines long, never conspicuously elongated, bearing, as well as the secondary' peduncles at the apex, a pair 
of concave-lanceolate acuminate bracts, which are about 1 line long. Pedicels, with the addition of the 
secondary peduncle, 1-2J lines long. Flowers all verging in the same inflorescence to one side, in their 
arrangement more or less corymbose- or racemose-cymose. The two inferior sepals deltoid- or rhomboid- 
ovate, about 1 line long; lateral sepals ovate, acute, about 11 line long - , longer than the uppermost; all 
three-nerved and nearly petaloid. The paired petals almost quadrate-obovate; the lateral ones hardly longer 
than the upper ones; lower one 3-5 lines long, violet-veined; its claw bicarinate, slightly bearded at the 
surface, protracted into a short hlunt saccate spur; lamina yellow at the base, with a dark violet limbus. 
Staminal glands verging from a cubic to subglobose form, opposite to the ridges of the lower petal, yellowish- 
green. Filaments measuring about 1 line, below very faintly downy; their appendage cordate- or ovate- 
orbicular, orange-colored. Pollen-grains ellipsoid, with longitudinal slits. Style, white, filiform, turgid 
towards the middle and apex, about 1 line long. Capsule 3—4 lines long’; its valves navicular-ovate, in age 
very divergent. Fertile seeds of ate or nearly ovate-globose, hardly longer than 1 line; sterile seeds pale 
and smooth. Strophiole fleshy, semilanceolate, turgid towards the base. 
Supplemental Plate VIII. 1, leaves and stipules ; 2, side view of flower; 3, front view of flower; 
4, lower petal; 5, paired petals; 6, upper sepal; 7, lateral sepals; 8, lower sepals; 9, staminal glands; 
10, genitalia; 11, back view of an anther; 12, front view of an anther; 13, pollen-grains; 14, pistil; 
15, un expanded capsule; 16, half-expanded capsule; 17, transverse section of capsule; 18, seeds; 19, trans- 
veise section of a seed; 20, longitudinal section of a seed: all analytical figures more or less magnified. 
