144 CRASSULACEZE. [Tillea. 
Fl. Nov. Zel. i. 75; Handb. N.Z. Fl. 62; Benth. Fl. Austral. iu. 
451; Kirk, Students’ Fi. 144. 
NortH Istanp: Cape Palliser, Colenso. Sour Isuanp: Lake Wanaka, 
Petrie! 
Also common in south-eastern Australia and Tasmania. The linear acumi- 
nate leaves, long pedicels, and many-seeded carpels at once separate it from all 
the other species found in New Zealand. 
Orper XXVI. DROSHRACESA.. 
Herbs, rarely undershrubs. Leaves alternate, often rosulate, 
stipulate, usually furnished with glandular irritable hairs; vernation 
circinate. Flowers regular, hermaphrodite. Calyx 4~6-partite or 
divided into 4-5 free sepals, imbricate, persistent. Petals the same 
number, hypogynous, rarely perigynous, free or sometimes connate 
at the base. Stamens 4—5, rarely more, hypogynous or perigynous, 
rarely epipetalous. Ovary free or nearly so, 1—3-celled ; styles 1-8, 
simple or bifid or multifid; ovules numerous, attached to parietal 
placentas equalling the styles in number. Capsule membranous, 
loculicidally 3-5-valved; seeds numerous, albuminous; embryo 
straight, axile. 
A small order, comprising 6 genera and about 120 species, distributed over 
the whole world with the exception of Polynesia, but most abundant is Aus- 
tralia. The whole of the species capture insects, usually by means of glandular 
viscid and irritable hairs; but in some cases, as the well-known Venus’s fly-trap 
(Dionza imuscipula) by rapidly closing laminz, which shut the insects as it 
were ina box. For a full account reference should ve made to Mr. Darwin’s 
well-known book on “ Insectivorous Plants.’’ The single New Zealand genus is 
the largest in the order, and has an almost world-wide distribution. 
1. DROSERA, Linn. 
Herbs, either scapigerous or with a leafy stem. Leaves rosu- 
late or alternate, covered with numerous hair-stalked glands which 
secrete a drop of transparent viscid fluid. Stipules wanting or 
adnate to the base of the petiole. Flowers solitary or in terminal 
often one-sided racemes or cymes. Calyx 4—5-partite. Petals 4-5, 
hypogynous or rarely perigynous, marcescent. Stamens the same 
number. Ovary ovoid or globose, 1-celled; styles 2-5, free or 
connate below; ovules numerous, on 2-5 parietal placentas. Cap- 
sule oblong, 2-5-valved. Seeds minute ; testa lax. 
Species about 100, scattered over the whole world, but most abundant in 
Australia. Of the 6 found in New Zealand, 1 is endemic, the remaining 5 
extend to Australia. 
* Scape 1-flowered. 
Leaves spathulate. Calyx-lobes short, rounded. Styles 3, 
multifid .. ae ae a¢ a i“ 
Leaves linear -ligulate. Calyx-lobes long, linear-oblong. 
Styles 3; stigmas capitate ae Ht ae 
Minute. Leaves rosulate, orbicular. Styles 4; stigmas 
clavate .. ae ee oe a 
1. D. stenopetala. 
2. D. Arcturt. 
3. D. pygmea. 
