28 FLORA OF TASMANIA. [Droseracea. 
membranous subciliated margins. Petals rather fleshy, twice as long as the calyx, ovate below, with broad, linear, 
recurved or revolute apices. Stamens nearly sessile, with broad connectives. Ovary ovoid, with a stout erect style, 
and short bipartite stigma of two flattened lobes. Ovules two, lateral, pendulous from opposite sides of the cavity 
of the ovary ; funiculus short, inserted into the middle of the ovule, whose apex is upwards. Berry white, with 
purple marks, \ inch long, fleshy, one-celled. Seeds two, large, oblong. Testa thick, crustaceous, smooth, with a 
few hairs on its surface ; outer surface dark brown, inner white. Albumen fleshy, in a membranous coat, pendulous 
from the summit of the cavity of the testa. Embryo three-fourths as long as the albumen ; radicle cylindrical ; 
cotyledons flat. 
Nat. Ord. VII. DROSERACEiE. 
Australia pre-eminently abounds in plants of this Order, and especially the southern and western parts 
of the continent, whence thirty-five species have been described, besides two species of the allied Australian 
genus Byblis. Altogether about fifty Australian species are known; of these only a few are common to 
other parts of the globe, as Brosera pygmaa, D. Arcturi, B. spathulata, and B. hinata, to New Zealand, and 
B. spathulata to the Philippine Islands. The scorpioid vernation of the flower-stem and the circinate foliage 
are most remarkable characters. The inflorescence indeed approaches that of Boraginea, being well 
described by A. Gray (Gen. Plant. United States) as a reduced unilateral cyme, which sometimes (B. 
binata) forks, and bears a primary terminal flower in the fork. In the bracteate species the pedicels do 
not arise from the axil, but the side of the bract. The Order has been well monographed by Planchon in 
the < Annales des Sciences Naturelles/ whence much of the following descriptions is taken. 
Gen. I. DEOSEEA, L. 
Sepala 4-5, plus mimisve inter se coalita. Petala et stamina 4-5, basi calycis inserta, vel hypogyna. 
Ovarium 1-loculare; stylo brevissimo, 3-4-partito, v. stigmatibus 3-4 coronato; ovulis plurimis, placentis 
3-4 parietahbus adnexis. Capsula 3-4-valvis. Semina plurima; embryone axi albuminis carnosi, tereti; 
radicula hilo proxima.-Herba3, ladice fbrosa v. bullosa; foliis glanduloso-pilosis, radicalibus smpim petio- 
latis rosulatis; floribus albis purpureis v. roseis. 
Small alternate-leaved, sometimes ternate-leaved plants, with slender stems or radical scapes.-i^ elon- 
gated and fibrous or tomentose or scal> bulb. Stem ometimes almost scandent, by means of the viscid glandular 
luurs that abound on the foliage; often giving out a purple dye. Radical leaves generally petiolate, often rosulate ; 
cauhne often peltate or lunate. Flowers cymose, solitary, or racemose, generally white, rarely pink or purplish 
Sepals 4-5, coherent at the base, and sometimes higher up. Petals 4-5, clawed. Stamens 4-5, inserted at the base 
of the calyx. Ovary one-ceUed, with a short divided style, or sessile, radiating, often plumose stigmata Omtle- 
numerous, attached to parietal placentae. Capsule 3-4-valved ; valves united or free. Seeds attached to broad fila- 
ments on the middle of the valves ; testa generaUy reticulated, often saccate, or drawn out into an appendage at the 
apex. (Name from 8po<ro S , dew ; in allusion to the glandular hairs.) 
§ 1. Leaves all radical. Scape one-flowered. 
1. Drosera Arcturi (Hook. Journ. Bot. 247) ; acaulis, foliis linearibus v. sursum dilatatis obtusis 
exaunculatts, stipulis 0, sepalis lineari-oblongis obtusis glaberrimis, petalis erectis coriaceis lineari-spathu- 
latis obtusis coriaceis, staminibus hypogynis, stylis 3 indivisis.-IM. Ic. PL t. 56: Planch, in Ann So 
Nat. ser. 3. ix. 189; FL N. Zeal. i. 20. {Chum, 129.) ' ' 
Guj^^s t * oimt weiimston ' and westem M ° untains ' ^ b ° gs ' eiev - 3 - 4o °° feet > Lm ™> 
