394 



PODOSTEMACEAE : PrOTEACEAE 



lA. Frond thin, 0.1-0.3 mm. thick; subulate leaves 2-8 mm. long. 



2A. Frond 0.1-0.15 mm. thick; subulate leaves 5-8 mm. long; stigma broadly subulate, 0.3-0.5 mm. long 1. H. floribundum 



2B. Frond 0.2-0.3 mm. thick; subulate leaves 2-4 mm. long; stigma cylindric, 0.4-0.5 mm. long 2. H. puncticulatum 



IB. Frond about 0.5 mm. thick; subulate leaves 8-12 mm. long; stigma elongate-linear, 1.5-2 mm. long 3. H. japonicum 



puncticulata (Koidz.) Koidz. ^Yakushima-kawagoromo. 



Closely resembles the preceding but the frond fleshy, green, 

 irregularly orbicular, rarely more than 10 cm. across, 0.2-0.3 

 mm. thick; subulate leaves 2-4 mm. long, in scattered fascicles 

 of 2's to 5's; flowers smaller and fewer on a frond than in the 

 preceding, the spathe smaller; stamens 2, the filaments vari- 

 ously connate; stigma cylindric to long-subulate, 0.4-0.5 mm. 



long, rarely to 0.8 mm. long; capsules 6- to 12-ribbed. 



Dec. Kyushu (Yakushima). 



3. Hydrobryum japonicum Imamura. H. griffithii var. 

 japonicum (Imamura) Koidz.; Hydroanzia japonica (Ima- 

 mura) Koidz. Kawagoromo. The fronds nearly orbicu- 

 lar, lobulate, about 0.5 mm. thick, deep green; subulate leaves 

 8-12 mm. long, the bracts larger and the scapes longer; stigma 

 1.5-2 mm. long, long-subulate or linear; capsules dark brown, 

 1 1- to 22-ribbed, the valves 2, more or less unequal, the smaller 

 valve often deciduous. ^Nov.-Dec. Kyushu (s. distr.). 



1. Hydrobryum floribundum Koidz. H. griffithii var. 

 ■floribundum (Koidz.) Koidz.; Hydroanzia floribunda 



(Koidz.) Koidz. ^Uso-kawagoromo. Frond flat, fixed by 



means of roodets on rocks in running water, irregularly orbicu- 

 lar and shallowly lobulate, green, rarely to 30 cm. across; fasci- 

 cles of leaves scattered on the upper surface of the frond, the 

 subulate leaves 5-8 mm. long, in groups of 3-6 together, decid- 

 uous from the frond before an thesis (in autumn), their minute 

 bases becoming accrescent, the scapes clothed with elliptic na- 

 vicular bracts; flowers solitary, erect, on a very short scape, 

 completely covered with a narrowly ovate spathe when young, 

 soon splitting down one side; stamens 2, the filaments connate 

 below, often to above the middle, the staminodes or perianth 

 segments 2, subulate, as long as the ovary; stigmas 2, broadly 

 subulate; capsules oblong-ellipsoidal, longitudinally 11- to 19- 

 ribbed. Nov .-Dec. Kyushu (s. distr.). 



2. Hydrobryum puncticulatum Koidz. Hydroanzia 



2. CLADOPUS Moeller Kawagoke-so Zoku 



Submersed perennial herbs on rocks in running water attached by rootlets, with flat green pinnately parted frondlike bodies 

 bearing fascicles of small, pahnately-lobed leaves and very short scapes on the upper side near the frond-sinus; flowers solitary 

 and terminal on die scape, short-pedicelled, entirely enveloped while young by an ovoid spathe, splitting at the time of anthesis; 

 stamen 1, attached to the ovary laterally, with a subulate segment on each side near base; ovary ovoid, oblique, 2-locular, the 

 placenta central, many-ovuled; stigmas 2, spathulate or subulate; capsules globose, 2-valved, the valves unequal, the smaller one 

 deciduous. ^Few species in Malaysia, China, and Japan. 



lA. Fronds profusely parted; autumnal leaves of nearly equal size. 



2A. Leaves deciduous \. C. japonicus 



2B. Leaves evergreen; fronds very densely pinnatisect, the segments relatively thick, short, obtuse 2. C. austrosatsumensis 



IB. Fronds loosely pinnatiparted; upper autumnal leaves larger than the lower 3. C. doianus 



ella austrosatsumensis Koidz. Tokiwa-podosutemon. 



Fronds evergreen, very densely pinnatisect, the segments 3-6 

 mm. wide, 0.4-0.6 mm. thick; summer leaves persistent over 



winter; autumnal leaves larger, stouter. ^Kyushu (s. distr.). 



3. Cladopus doianus (Koidz.) Koriba. Lawiella doiana 



Koidz.; Hemidistichophyllum doianum (Koidz.) Koidz. 



TsuKusHi-poDosuTEMON. Fronds evergreen, loosely pinnati- 

 parted, the segments about 0.5 mm. thick, 1-2 mm. broad; 

 summer leaves densely fascicled on upper surface near the base 

 of the leaf sinus, 3-7 mm. long, about 0.3 mm. wide, subulate, 

 acute to obtuse, sessile; autumnal leaves rhombic-orbicular or 

 obovate-orbicular, sessile, bifid, 4- to 8-Iobulate, larger than the 

 foregoing species, the scape longer, to 10 mm. long; flowers 

 solitary, subtended by an ovoid-elliptic, often reddish spathe, 

 longitudinally split, the pedicel erect; stamen 1, often bifid, the 

 filament with a minute subulate segment (staminode or 

 perianth-segment) on each side at base; capsules globose to 

 ellipsoidal, about 1.5 mm. long, unequally 2-valved, the smaller 



valve deciduous, the stipe about 3 mm. long. Kyushu (s. 



distr.). 



1. Cladopus japonicus Imamura. Hemidistichophyllum 



japonicum (Imamura) Koidz.; Lawiella kjusiana Koidz. 



Kawagoke-so. Fronds flat, deciduous, tightiy adhering by 

 dense rootlets on rocks in running water, regularly and al- 

 ternately pinnately parted, deep green, the segments 2-4 mm. 

 wide, 0.2-0.4 mm. thick, thinner toward the margin; fascicles 

 of leaves on the upper side near the sinuses of the fronds; 

 summer leaves 3-15, usually 7-8 in a fascicle, subulate or 

 linear, 4-8 mm. long, about 0.3 mm. wide, 0.1 mm. thick, ob- 

 tuse, usually deciduous before anthesis; autumnal leaves much 

 shorter and developing in the place of the summer ones, 6-12, 

 2-seriate, depressed-orbicular, bifid and palmately lobed, 

 densely arranged on the scape and concealing it; scapes very 

 short, erect, 2-3 mm. long; flowers enclosed in a spathe while 

 young, erect, solitary, the spathe about 1.5 mm. long, pinkish 

 at tip; stamen 1, the filament subulate, subtended by a subu- 

 late segment (staminode or perianth-segment) on each side; 

 stigmas 2, shortly connate below, usually obovate-spathulate; 



capsules globose, 1.5 mm. long, the stipe 4-5 mm. long. 



Oct.-Dec. Kyushu (s. distr.) . 



2. Cladopus austrosatsumensis (Koidz.) Ohwi. Lawi- 



Fam. 71. PROTEACEAE Yama-mogashi Ka Protea Family 



Trees or shrubs, rarely herbs; leaves usually alternate, coriaceous, entire or pinnatiparted, exstipulate; flowers bisexual, the 

 perianth uniseriate, regular or irregular, tubular, segments 4, hypogynous, gibbous, free, recurved above; stamens 4, adnate to 

 the perianth-segments, the glands or scales 4, sometimes connate, alternate with the stamens or sometimes absent; ovary 1-locular, 



usually 1- to many-ovuled; fruit a drupe, follicle, samara, or achene; seeds without endosperm. About 55 genera, with about 



1,200 species, mostly in the drier regions of the S. Hemisphere. 



