Droseraceae; Crassulaceae 493 



without long glandular-tipped hairs on upper side; racemes leaves; stems erect, 10-30 cm. long, slender, sparingly 



short-pedunculate, 5-10 cm. long, loosely 3- to 10-flovvered, branched above; radical leaves withering before anthesis, the 



rather densely short glandular-hairy, the pedicels spreading, cauline loosely alternate, lunate, 2-3 mm. long, 4-6 mm. wide, 



10-15 mm. long; flowers white or rose; sepals lanceolate, with long gland-tipped bristlelike hairs on the upper side, 



acute; petals 6-8 mm. long; capsules subglobose, about 3.5 acute on the angles, the petioles slender; racemes 2- to 10- 



mm. long; styles 3, bilobed, the stigma capitellate; seeds about flowered, 2-6 cm. long including the short peduncle, the pedi- 



0.5 mm. long, broadly ovate-elliptic, black, slighdy acute at eels 4-6 mm. long; sepals ovate, laciniate, the segments 



one end, longitudinally ribbed and cross-lined. July-Aug. glandular-tipped; petals 6-8 mm. long; capsules subglobose. 



Wet grounds in lowlands; Honshu (Kanto and Tokaido about 2.5 mm. long; styles 4-parted; seeds broadly elliptic, 



Distr.). China, Malaysia, Australia, India, and Africa. slightly attenuate at both ends, about 0.5 mm. long with fine 



5. Drosera peltata Smith var. nipponica (Masam.) longitudinal ribs and obsolete cross-lines. May-June. Wet 



Ohwi. D. nipponica Masam.; D. peltata var. liinata sensu places; Honshu (Kanto Distr. and westw.), Shikoku, Kyushu. 



aucL Japon., non Clarke; D. lunata sensu auct. Japon., non China. The typical phase occurs in India, Australia, and 



Hamilt. Ishi-mochi-s6. Tuberous perennial herb, mostly e. Asia. 



glabrous except for glandular hairs on upper side of the 



2. ALDROVANDA L. Mujina-mo Zoku 



Floating aquatic herb, green, glabrous, without roots; stems jointed, slighdy elongate, sparingly branched, 15-20 mm. across, 

 inclusive of the verticillate leaves; leaves 6-8 at each node, the petioles cuneate, spreading, with few brisdes above, the blade 

 cochleate, with a hinge-joint; flowers solitary on an axillary pedicel, bracdess, pale green, 5-merous, the calyx 5-sected; 

 petals 1.5 rimes as long as the calyx, narrowly oblong, thinly membranous; stamens 5; ovary superior, ovoid, with 5 parietal 

 placentae; ovules in 2 series; styles 5, rather elongate, the stigma flabellate, irregularly lobed; capsules ovoid-globose, slightly 



longer than the petals, crowned with the widiered corolla; seeds minute, ellipsoidal, black, shining, with a mucro at base. 



A single species. 



1. Aldrovanda vesiculosa L. Mujina-mo. July- 

 Aug. Shallow ponds; Honshu; rare. centr. and s. Europe, 



India, and Australia. 



Fam. 100. CRASSULACEAE Benkei-so Ka Stonecrop Family 



Usually fleshy herbs or shrubs; leaves opposite, alternate or verticillate, without stipules; flowers in terminal cymes, rarely 

 solitary or in spikes, bracteate or ebracteate; sepals 3-5 or rarely more, as many as the petals; petals free or connate at base, 

 imbricate in bud; stamens as many or more often twice as many as the petals; nectariferous glands opposite the carpels or rarely 

 absent; carpels 3-5, rarely more, free or rarely connate at base; ovules many or sometimes few, inserted on the suture on the 



ventral side, ascending or pendulous; fruit follicular, the seeds small, usually oblong, with fleshy endosperm. About 20 genera, 



with about 1,300 species, nearly cosmopolitan, except Australia, especially abundant in S. Africa and centr. Asia. 



lA. Plant fleshy; carpels free or nearly so. 



2.\. Stamens 3-5, as many as the sepals, petals, and carpels 1. Tillaea 



2B. Stamens 8-10, twice as many as the sepals, petals, and carpels 2. Sedtim 



IB. Plant not fleshy; carpels connate below and forming a 5-loculcd capsule 3. Penthorum 



1. TILLAEA L. Azuma-tsume-kusa Zoku 



Small, glabrous, rather fleshy herbs; leaves opposite, linear, entire, often terete; flowers axillary, solitary or in cymes or terminal 

 panicles; sepals 3-5, often connate at base; petals 3-5, linear; stamens 3-5, the filaments filiform, the glands scalelike, 3-5 or 



absent; carpels 3-5, free, die ovules 1 to many in each locule. Wet places or in water, with more than 20 species, in both 



hemispheres. 



1. Tillaea aquatica L. Bulliarda aqtiatica (L.) DC; 1.5 mm. long, obtuse, ovate or narrowly so, membranous, 



Tillaeastrtim aquaticum (L.) Britt.; Elatine tetrandra Maxim. about twice as long as the calyx; stamens shorter than the 



Azuma-tsume-kusa. Glabrous, sparsely branched an- petals; carpels erect, narrowly ovate, slightly shorter than the 



nual 2-6 cm. high; leaves broadly linear, opposite and con- persistent petals, the glands terete; seeds few, narrowly ob- 



nate at the base, 5-8 mm. long, about 1 mm. wide; flowers long. May-June. Wet places in lowlands; Hokkaido, 



sessile and solitary in the axils, 4-merous; petals whitish, about Honshu. Eurasia, n. Africa, and N. America. 



2. SEDUM L. KiRiN-sS Zoku 



Fleshy and usually glabrous annuals or perennials; leaves alternate, simple, opposite or verticillate, rarely rosulate, entire or 

 toothed, rarely spine-tipped, usually sessile; flowers in terminal cymes or solitary, rarely in spikes, yellow, white, or rose-purple, 

 bisexual (plants sometimes dioecious); sepals 4-5, free; petals as many, free, persistent; stamens twice as many as the sepals and 

 petals, the filaments subulate or filiform; nectariferous glands 5 or 4, minute; ovary superior; carpels 5, sometimes 4, free or 



shordy connate below; styles short, the ovules rather many; fruit a follicle. About 350 species, abundant in the temperate 



regions of the Old World, also in N. and S. America. 



