810 Scrophulariaceae; Pedaliaceae; Orobanchaceae 



with 2 lateral rounded lobes, obsoletely toothed; corolla ob- sules oblique, ovate, to 15 mm. long, with a short reflexed 



liquely spreading, about 3 cm. long, the helmet gently in- beak; seeds about 4 mm. long, reticulate. Aug.-Sept. 



curved, obtuse, entire, villous on margin, the lower lip spread- Mountains; Kyushu (Yakushima) ; rare, 

 ing from the base, deeply 3-lobed, the lobes subreflexed; cap- 



Fam. 178. PEDALIACEAE Goma Ka Sesame Family 



Annuals or perennials; leaves opposite or the upper alternate, simple, not stipulate; flowers bisexual, zygomorphic; sepals 4 or 

 5, often connate, sometimes split on one side; corolla often oblique, the limb 5-lobed, the lobes imbricate in bud; fertile stamens 

 4, rarely 2, alternate with the corolla-lobes, the anthers in pairs, contiguous, longitudinally split; ovary superior or semi-inferior, 

 1-locular with 2 intruded parietal placentae, or 2- to 4-locular; ovules 1 to many; fruit a capsule or nut, or drupelike; seeds without 

 endosperm. About 12 genera, with about 60 species in tropical and warmer regions, especially abundant in Africa. 



1. TRAPELLA F. W. Oliv, Hishi-modoki Zoku 



Aquatic herb with elongate slender stems; leaves opposite, the submersed ones narrowed at base, the floating deltoid-orbicular 

 or reniform-cordatc, toothed; flowers solitary in axils, long-pedicellate; calyx-tube adnate to the ovary, with 5 hornlike append- 

 ages near the apex, these elongate after anthesis, spreading, antennalike; corolla tubular, ampliate, 5-lobed, the lobes imbricate 

 in bud; stamens inserted on the tube, the upper pair sterile, elongate; ovary semi-inferior, 2-locular, the 1 fertile locule with 2 

 ovules; stigma dilated, shortly bilobed; fruit indehiscent, narrow, 1-seeded; seeds 4-ridged, narrow. One species. 



1. Trapella sinensis F. W. Oliv. Trapa antennifera 3-nerved, the petioles 1-3 cm. long; flowers pedicellate, 2-2.5 



Lev.; Trapella sinensis var. antennifera (Lev.) Hara; Trapella cm. long, 1.5-2 cm. across, pale rose, sometimes cleistogamous; 



antennifera (Lev.) Glueck; Trapella sinensis var. infundibularis calyx-teeth about 2 mm. long; fruit cylindric, narrowed at 



Glueck HisHi-MODOKi. Plant glabrous; steems slender, base, often winged, 12-20 mm. long, 3-4 mm. across, with 3-5 



elongate; submersed leaves lanceolate to broadly so, loosely spreading spines longer than the fruit, these often hooked. 



toothed, the floating 2-3.5 cm. long, 2.5-4 cm. wide, very ob- July-Sept. Ponds and shallow lakes in lowlands; Honshu, 



tuse or rounded at apex, undulately toothed, cordate at base, Kyushu. Korea and China. 



Fam. 179. OROBANCHACEAE Hama-utsubo Ka Broom-rape Family 



Root parasites without chlorophyll; scapes usually simple, often with scalelike leaves toward the base; flowers bracteate, usu- 

 ally in dense spikes, bisexual, zygomorphic; calyx 4- or 5-toothed or variously lobed; corolla often incurved, the limb oblique 

 or bilabiate, the lobes 5, imbricate in bud, the 2 dorsal (inner) ones innermost in bud; fertile stamens 4, didymous, inserted on 

 lower part of tube, alternate with the lobes, the median or 5th one absent or reduced to a staminode, the anthers in pairs, 

 longitudinally split; ovary superior, 1-locular, the placentation parietal; ovules many; capsules usually enclosed in the calyx, 

 2-lobed; seeds many, minute, with fleshy endosperm. About 15 genera, with about 150 species. Cosmopolitan. 



lA. Flowers on very long ebracteolate basal pedicels; calyx spathelike, split in front nearly to the base, entire; anthers with one well- 

 developed locule 1. Aepneiia 



IB. Flowers sessile or short-pedicellate, in terminal spikes; calyx o£ separate or variously connate sepals; anthers with 2 well-developed 

 locules. 

 2A. Sepals 4 or 5, connate. 



3A. Calyx united, 4- or 5-toothed. 



4A. Calyx cup-shaped, 5-toothed; flowers sessile, without a disc 2. Boschniakia 



4B. Calyx campanulate, 4-toothed; flowers short-pedicellate, with a disc at base of ovary in front 3. Lathraea 



3B. Calyx irregularly 2-fid, the 1- or 2-toothed segments free or connate at base in front 4. Orobanche 



2B. Sepals 2 (or 3), free, sometimes much reduced 5. Phacellanihus 



1. AEGINETIA L. Namban-giseru Zoku 



Stems very short, simple, few-scaled, narrow; flowers few, large, without bracteoles, very long-pedicelled; calyx spathelike, 

 split in front nearly to the base, acute or obmse, usually entire; corolla-tube broad and elongate, incurved, the limb spreading, 

 slightly bilabiate, the lobes 5, broad, the dorsal (inner) 2 lobes connate at base; stamens not exserted, the anthers with one 

 well-developed locule; placentae 2, free, broad, irregularly lobed; stigma large, peltate; capsules many-seeded; seeds small, im- 

 pressed-punctulate. ^Few species, in s. Asia. 



lA. Calyx acute, 1.5-3 cm. long, pale rose-purple striate; corolla-lobes entire 1. A. indica 



IB. Calyx obtuse, (2.5-)3-4(-5) cm. long, pale rose-purple; corolla-lobes minutely toothed 2. A. sinensis 



1. Aeginetia indica L. var. gracilis Nakai. A. indica 20-30 cm. long, naked, 1-flowered; calyx spathelike, 2-3 cm. 



sensu auct. Japon., non L.; A. japonica Sieb. & Zucc. ^Nam- long, obtusely keeled on the back; corolla tubular, the lobes 



BAN-GiSERU. Reddish glabrous saprophytic slighdy fleshy depressed-rounded, spreading, about 7 mm. long; capsules 



herb; stems short, branched, scarcely emergent above ground, ovoid-globose, 1-1.5 cm. long. July-Sept. Grassy places in 



scales (bracts) few, narrowly deltoid, 5-10 mm. long; flowers lowlands and low mountains; Hokkaido, Honshu, Shikoku, 



horizontal, pale rose-purple, 3-5 cm. long, the pedicels erect, Kyushu; common. Ryukyus. 





