lyS DROSERACE.E 



surface of tlie leaf. It has been experimentally demonstrated that 

 the Sundews benefit by the animal food tlius obtained. 



I. DkosiLR.i (.Sundew). — Sh'/iiks membranous, adnata to the 

 petiole ; flowers in i-sided syrapodial cynjes, curled up circinately 

 when in bud ; se/a/s, petals, and s/amens 5 each ; sivles 2 — 5, 

 deeply 2-fid ; capsule i-chambered, 2 — 5-valved. (Name from 

 the Greek drosera, dewy.) 



1. D. fotutidlfolia (Round-leaved Sundew).- -An exceedingly 

 curious little bog plant, 2 — 6 in. high ; leaves all radical, petiolate, 

 spreading horizontally, round, with tentacles on the petiole, upper 

 surface, and margin ; flowers on a slcrtder, wiry leafless scape, 

 small, white, cleistogene, or opening very rarely in sunny weather. 

 — Spongy bogs and heaths ; common. — Fl. July, August. 

 Perennial. 



2. D. diig/iea (Great Sundew). — A larger, stouter species ; 

 leazvs all radical, on very long stalks^ which are destitute of 

 tentacles, erect or nearly so, obovate.— ;-In similar situations to 

 the last, but much less frequent. — Fl. July, August. Perennial. 



3. D. loiigifo/Ia (Longdeaved Sunde^*'). — Very similar to the 

 last, but smaller ; kaves spathulate, not more than 2 in. long ; 

 ped7incles curved at the base. — Occurring with D. >-otiaidifc>Iia, but 

 less frequent. — Fl. July, August. Perennial. 



OrD. XXX. LVTHR,\RIE/E. ThE LOOSESTRIFE FaSIII.Y 



Herbs, shrubs, or trees, with 4-angled branches ; simple, entire, 

 exstipulate, andgenerallyopposite kaves, and usually polysymmetric 

 flowers; sepals and petals t, — 6 each; .rA""t'"-f equalling the petals 

 in number, or 2 — 4 times as many ; carpels 2 — 6 ; fruit a many- 

 seeded capsule, co'i'crcd by the calyx, but not uniteid to it. — Most 

 members of the Order are tropical, and, many of them possess 

 astringent properties which are utilised* in dyeing. Lawsonla 

 incrmis is the Henna of Egypt, which lias been used for ages by 

 the people of that country to stain their nails of an orange colour. 

 It is also used to dye Morocco leather a^reddish-yellow. 



1. Peplis. — Calyx bell-shaped, with 12 di\"isions, alternately 

 smaller; petals 6, minute, fugacious or absent, sta/ueus 6 or 12 ; 

 st]de very short. 



2. LvTllRUM. — C(;/r,v cylindric, witli 12 dn'isions, alternately 

 smaller; petals 6 ; stamens 6 or 12 ; style long. 



r. Pei'lis (\Vater Purslane). — Small, weak, annual herbs; 

 //i97£'(7'i minute, axillary ; iv^/i'.v campanulate, 1 2-lobed, the alternate 

 lobes smaller ; petals, perigynous. fugacious or ab-.-ent ; stamens 6 



