504 Saxifragaceae 



spotless, abruptly narrowed to a prominent claw at base; Var. idsuroei (Fr. & Sav.) Engl. S. idsuroei Fr. & Sav. 

 stamens about 4 mm. long, the filaments linear; capsules Kumomagusa. Leaves often shortly 3-lobed, the flow- 

 broadly ovoid, 6-7 mm. long, bifid, superior. July- Aug. ers 1-4. Alpine regions; Honshu (centr. distr.). 



Gravelly and sandy slopes in alpine regions; Hokkaido. 



Kuriles and Kamchatka. 



5. PELTOBOYKINIA Hara Yawata-so Zoku 



Rather large perennial herbs with short creeping rhizomes; stems few-leaved; radical leaves long-petioled, large, peltate, 

 palmately lobed, the stipules membranous; cymes terminal; calyx-tube shallowly campanulate, adnate to the ovary on lower half, 

 the lobes 5; petals 5, pale yellow, toothed, glandular-dotted, ascending, deciduous; stamens 10; ovary 2-locular, subsuperior; carpels 

 connate nearly all the way, the placentae axile; styles 2, free; capsules subsuperior, enclosed in the somewhat inflated calyx-tube; 

 seeds minute, longitudinally tuberculate. Two species, in Japan. 



lA. Leaves 7- to 13-lobed, the lobes ovate-deltoid, abruptly acute, broader than long LP. tellimoides 



IB. Leaves 8- to 10-cleft, the lobes narrowly cuneate-ovate, acuminate, 2—3 times as long as wide 2. P. watanabei 



1. Peltoboykinia tellimoides (Maxim.) Hara. Saxi- 2. Peltoboykinia watanabei (Yatabe) Hara. Saxijraga 



jraga tellimoides Maxim.; Boy\ima tellimoides (Maxim.) watanabei Yatabe; S. tellimoides var. watanabei (Yatabe) 



Engl. Yawata-s6. Rhizomes stout and short; radical Makino; Boy\inia tellimoides var. watanabei (Yatabe) Engl.; 



leaves 1 or 2, long-petioled, orbicular, peltate, cordate, 10-25 B. watanabei (Yatabe) Makino; P. tellimoides var. watanabei 



cm. long and as wide, shallowly palmate-lobed, toothed, ob- (Yatabe) Hara Watanabe-so. Closely resembles the pre- 



soletely incised, glabrous or slightly glandular-pilosulous, lus- ceding species; leaves palmately cleft below the middle, the 



trous above; stems 30-60 cm. long, rather stout, 2- to 3-leaved, lobes narrow, acuminate, slightly narrowed at base; rhizomes 



the cauline leaves smaller, short-petioled or subsessile; inflores- short; radical leaves long-petioled, about 25 cm. long and as 



cence several-flowered, the bracts small; calyx-lobes narrowly wide, 8- to 10-cleft, the lobes much longer than wide, usually 



deltoid, erect, acute, 4-5 mm. long; petals creamy white, 2- to 3-incised, glabrous, irregularly toothed; calyx-lobes del- 



broadly oblanceolate, 10-12 mm. long, nearly acute, ascending, toid, acute, about 4 mm. long; petals pale yellow, short-glandu- 



few-toothed toward tip; capsules 10-13 mm. long, broadly lar, 8-10 mm. long, about 2.5 mm. wide. June-July. 



ovoid, enclosed within the calyx-tube. May-July. Woods Woods in mountains; Shikoku, Kyushu; rare. 



in mountains; Honshu (n. and centr. distr.); rare. 



6. BOYKINIA Nutt. Arashigusa Zoku 



More or less pubescent perennial herbs; leaves petiolate, orbicular-cordate, palmately lobed; scapes few-leaved; cymes paniculate, 

 terminal, the bracts small; flowers small, greenish-yellow or white, bisexual; calyx-tube campanulate or subglobose, adnate to die 

 ovary most of the way, the lobes 5; petals 5, deciduous or somewhat persistent, as many as the stamens; ovary nearly inferior; 



carpels adnate to the calyx-mbe; capsules 2-locular, 2-beaked; styles free; seeds minute. About 10 species, in N. America, 1 in 



Japan. 



1. Boykinia lycoctonifolia (Maxim.) Engl. Saxifraga pubescent on the nerves beneath; stems 15-40 cm. long, few- 



lycoctonijolia Maxim.; Therofon lycoctonifolia (Maxim.) Ta- leaved, long glandular-hairy; inflorescence glandular-pilose; 



keda; Neoboyl^inia lycoctonifolia (Maxim.) Hara Arashi- flowers small, yellow-green; calyx-lobes narrowly deltoid; 



GUSA. Rhizomes slender, creeping, rather elongate; radical petals slightly shorter than the sepals, obovate, about 2 mm. 



leaves solitary, long-petiolate, reniform-orbicular, 3-10 cm. long; capsules ellipsoidal, 7-8 mm. long; seeds longitudinally 



long, 5-15 cm. wide, palmately 7- to 9- lobed or -cleft, incised and minutely tuberculate. July-Aug. Wet grassy slopes in 



and toothed, dull and nearly glabrous on upper side, long- high mountains; Hokkaido, Honshu (centr. and n. distr.). 



7. CHRYSOSPLENIUM L. Neko-no-me-s6 Zoku 



Small more or less succulent perennials or biennials; leaves alternate or opposite, simple, short-toothed, petiolate, stipules ab- 

 sent; radical leaves often few; stems scapose, the bracts subfoliaceous often colored; flowers small, in cymes, green, yellow, or 

 white; calyx-tube cup-shaped or infundibuliform, the limb 4-lobed; petals absent; stamens 8 or sometimes 4; ovary 1-locular; styles 

 2, short, free; capsules subinferior or nearly superior, depressed or laterally compressed, bifid; seeds elliptic, sometimes fusi- 

 form, small, smooth or tuberculate, often longitudinally ribbed. Principally in China and Japan, few in Europe and Siberia, 



also a few in N. and S. America. 



lA. Leaves opposite or very rarely partially alternate in the cauline ones. 



2A. Stolons hypogeal, leafless, bearing a bulbil at apex; nearly glabrous 1. C. tnaximowiczii 



2B. Stolons epigeal, with few pairs of leaves and without bulbils. 

 3A. Plants brownish or whitish pilose. 



4A. Calyx-lobes erect at anthesis; seeds longitudinally warty; stamens as long as to slightly longer than the calyx-lobes; capsules with 

 2 ascending or nearly erect beaks. 



