498 Crassulaceae; Saxifragaceae 



Var. polycephalum (Makino) Ohwi. Cotyledon poly- long, simple, many-flowered, the flowers dense, sessile; sepals 



cephala Makino; 5. polycephalum (Makino) Makino; Oro- 5, ascending, 3.5 mm. long, lanceolate-spathulate, subequal; 



stachys polycephalus (Makino) Hara Yatsugashira. petals 5, greenish white, slightly longer tlian the sepals, nar- 



Plants with sterile innovation-shoots at base. rowly ovate, 4.5-5 mm. long, ascending in anthesis, closely 



Var. japonicum (Maxim.) Ohwi. Cotyledon japonica appressed to the carpels in fruit; carpels 5, erect, oblong, as 



Maxim.; 5. /'flpowico/fl Makino; Orostachys japonicus {Mdi'sim..) long as the petals; styles erect, about 1 mm. long. Oct.- 



Berger Hiro-ha-tsume-renge. Radical leaves ovate-ob- Nov. Rocks near the sea; Hokkaido (Momoiwa in Rebun 



long to narrowly so, often to 10 mm. wide, the cauline leaves Isl.) ; rare. 



oblong-linear. Rocks near the seashore; Honshu. 34. Sedum aggregeatum (Makino) Makino. Cotyle- 



32. Sedum iwarenge (Makino) Makino. Cotyledon don mdacophylla sensu auct. Japon., non Pall.; C. aggregeata 



iwarenge Makino; Orostachys iwarenge (Makino) Hara; C. Makino; Orostachys aggregeatus (Makino) Hara Ao-no- 



malacophylla var. japonica Fr. & Sav. Iwa-renge. Mono- fwa-renge, Ko-iwa-renge. Closely resembles No. 32, but 



carpic perennial; stems erect, densely leaved on lower half, the leaves smaller, obtusely rounded, green, not glaucous, 2-4 



10-25 cm. long; caudex and stems densely many-leaved; leaves cm. long, 1-2 cm. wide. June-Oct. Rocks near the sea; 



glaucous, fleshy, flat, oblong-spathulate, 3-7 cm. long, 7-28 Honshu (Pacific Ocean side from Mutsu to Iwaki Prov.). 



mm. wide, obtuse to rounded; spike solitary and terminal, Var. genkaiense (Ohwi) Ohwi. Orostachys genkfliensis 



erect, very densely many-flowered, 5-20 cm. long; flowers Ohwi. Genkai-iwa-renge. Rosulate leaves larger, to 8 



short-pedicellate, white; petals 5-7 mm. long, about twice as cm. long. Kyushu (n. distr.); rare. 



long as the sepals. Sept.-Nov. Not known wild in our Var. boehmeri (Makino) Ohwi. Cotyledon mdacophylla 



area but frequently planted. China (?). var. boehmeri yiskmo; C. boehmeri (Makino) Makino; Oro- 



33. Sedum funisei (Ohwi) Ohwi. Orostachys furusei stachys boehmeri (Makino) Hara; S. boehmeri (Makino) Ma- 



Ohwi REBUN-rwA-RENGE. Glaucous perennial; sterile stems kino Ko-mochi-renge. Innovation-shoots stout, hori- 



slender, ascending, short, densely leaved at the apex, the basal zontally spreading, with a tuft of rosulate leaves at the apex. 



innovation-shoots somewhat elongate, ascending to short- Seashores; Hokkaido, Honshu (Japan Sea side from 



creeping; radical leaves fleshy, flat, obovate, 10-20 mm. long, Mutsu to Ugo Prov.). 



5-10 mm. wide, cuneate, entire; spikes many-leaved, 5-10 cm. 



3. PENTHORUM L. Tako no-ashi Zoku 



Perennials with stolons; stems erect; leaves alternate, membranous, lanceolate, long-acuminate at both ends, sessile, serrulate; 

 cymes terminal, the branches scorpioid; flowers yellow-green, small; calyx-tube short, the lobes 5; petals 5 or absent; stamens 10, 

 nectary glands absent; carpels 5, united on the lower half; style short; capsules depressed, 5-beaked, dehiscent from the base of 



the free portion of the carpels, the upper portion deciduous; seeds many, ovoid. Two species, one in e. Asia, the other in 



N. America. 



1. Penthorum chinense Pursh. P. sedoides var. chi- flowered; capsules about 7 mm. across; seeds ovoid. Aug.- 



nense (Pursh) Maxim.; P. sedoides sensu auct. Japon., non L.; Sept. Wet muddy places along rivers in lowlands; Honshu 

 P. sedoides forma angustifolium Miq. Tako-no-ashi. (Kanto Distr. and westw.), Shikoku, Kyushu; locally corn- 

 Stems 30-70 cm. long, terete; inflorescence branched, many- mon. Korea, China, Manchuria, and e. Siberia. 



Fam. 101. SAXIFRAGACEAE Yuki-no-shita Ka Saxifrage Family 



Herbs or shrubs, rarely trees; leaves alternate or opposite, often stipulate; flowers bisexual, sometimes unisexual, the marginal 

 ones sometimes sterile; calyx often gamosepalous and adnate to the ovary, the perianth lobes imbricate or valvate in bud; stamens 

 as many as the calyx-lobes or twice as many, sometimes more, staminodia often present; disc frequently well developed; ovary 



superior or inferior; carpels 2-5, nearly free or united; fruit a capsule, sometimes a berry. About 110 genera, with about 



1,200 species, most abundant in the N. Hemisphere but also in the S. Hemisphere. 



lA. Fruit a capsule. 

 2A. Herbs; carpels usually 2; stamens as many or twice as many as the petals. 

 3A. Staminodia absent. 



4A. Ovary 2-locular with axilc placentae. 



5A. Leaves pinnately, ternately, or palmately compound, rarely simple; seeds irregularly shaped. 



6A. Flowers ebracteate, apetalous; carpels connate below; leaves palmately divided; stipules scarious 1. Rodgersia 



6B. Flowers bracteate. 



7A. Carpels nearly free; leaves ternately compound, rarely simple; stipules brown-scarious 2. Astilbe 



7B. Carpels connate; leaves simple, evergreen, coriaceous; stipules indistinct 3. Tanakaea 



5B. Leaves simple; seeds globose. 



8A. Calyx-tube usually slender, completely adnate to the ovary; stamens 10 4. Saxifraga 



8B. Calyx-tube campanulate, adnate to the ovary only at base; petals and stamens inserted on the margin of the calyx-tube. 



9A. Stamens 10; petals deciduous; leaves peltate 5. Peltoboykinia 



9B. Stamens 5; petals rather persistent; leaves palmately cleft, petiolate, basifixed 6. Boy\inia 



4B. Ovary 1-locular with parietal placentae. 



lOA. Flowers 4-merous, apetalous, in cymes; bracts rather leaflike 7. Chrysosplenium 



lOB. Flowers 5-mcrous, usually petaloid, in racemes; bracts not leaflike. 



