774 



Labiatae 



rowly ovate, shorter than the calyx except the lower ones; calyx 

 12-15 mm. long, rather unequally 5-lobed to near the middle, 

 narrow, usually spreading-pubescent, with raised nerves, the 

 lobes short spine-tipped; corolla 3-3.5 cm. long, blue-purple, 

 pubescent externally; anthers bearded; nutlets ovate-orbicular. 



compressed-trigonous, black, about 2.5 mm. long, rounded on 

 both ends, the areole transversely oblong, white. ^June- 

 July. Sunny dry slopes in mountains; Hokkaido, Honshu 



(Kinki Distr. and northw.). Korea, n. China, Manchuria, 



and e. Siberia. 



10. PRUNELLA L. Utsubogusa Zoku 



Perennial herbs with opposite, entire to pinnately lobed leaves; verticils many, few-flowered, in dense terminal spikes; flowers 

 purplish or white; calyx tubulose, about 10-nerved, bilabiate, the upper lip flat, truncate, with 3 short teeth, the lower lip bifid, 

 the lobes lanceolate; corolla-tube with a ring of hairs inside near base, the limb bilabiate, the upper lip galeate, the lower lip 

 3-lobed, with a larger midlobe concave on back, and reflexed lateral lobes; stamens 4, didymous, the filaments often toothed at 

 top; style bifid, the lobes equal; nudets oblong, smooth. Few species, in temperate regions and in mountains of the tropics. 



lA. Petioles 10-30 mm. long; stems usually ascending or short-decumbent at base; flowers about 2 cm. long, blue-purple; filaments with a 



tooth on upper part I. P. vulgaris 



IB. Petioles 0-5(-10) mm. long; stems usually erect from the base; flowers about 3 cm. long, rose-purple; filaments without teeth. 



2. P. prunelliformis 



Hokkaido, Honshu (n. and centr. distr.). Kuriles, Ko- 

 rea, cooler regions of e. Asia, and the Aleutians. Grades into 

 the typical phase which occurs in Europe. 



2. Prunella prunelliformis (Maxim.) Makino. Draco- 

 cephdum prunelliforme Maxim.; Prunellopsis prunelliformis 

 (Maxim.) Kudo Tateyama-utsueogusa. Scattered coarse- 

 pilose; rhizomes short; stems usually tufted, erect, 25-50 cm. 

 long, with 5-10 pairs of leaves; leaves narrowly to broadly 

 ovate, 3-8 cm. long, 1.5-4 cm. wide, subacute to obtuse, 

 rounded or sometimes broadly cuneate at base, sessile or short- 

 petiolate; spikes 1-5 cm. long, about 2.5 cm. across, densely 

 many-flowered, the bracts depressed deltoid-ovate, long-ciliate; 

 calyx 1-1.5 cm. long, glabrous inside, the teeth spine-tipped; 

 corolla rose-purple, about 3 cm. long, glabrous to scattered 

 long-pubescent outside, papillose on lower half of the tube 

 inside, with a ring of hairs about 1.5 mm. above the base, 

 midlobe of lower lip prominently toothed on margin; anther- 

 locules pubescent on margin; nutlets lenticular, about 2 mm. 

 long, rounded at apex, yellow-brown, rather lustrous, with 

 few longitudinal striations on both faces and on margin, the 



areole slightly convex. Aug. Alpine slopes; Honshu 



(centr. and n. distr.). 



1. Prunella vulgaris L. var. lilacina (Nakai) Nakai. P. 

 vulgaris forma lilacina Nakai; P. vulgaris sensu auct. Japon., 

 pro parte, non L.; P. asiatica Nakai; P. vulgaris subsp. asiatica 



(Nakai) Hara Utsubogusa. Stoloniferous; stems, leaves 



and inflorescence coarsely white-pilose; stems ascending or 

 short-decumbent at base, erect, 20-30 cm. long, with few pairs 

 of leaves, sometimes branched; leaves broadly lanceolate to 

 ovate, usually ovate-oblong, 3-6 cm. long, 2-4 cm. wide, sub- 

 obtuse, cuneate to rounded at base, with few mucronate teeth, 

 the petioles 1-3 cm. long, the upper leaves usually sessile; 

 spikes densely many-flowered, 3-8 cm. long, about 2 cm. 

 across, the bracts depressed-cordate, long-ciliate, broadly cuspi- 

 date; calyx 7-10 mm. long, the teeth short spine-tipped; flow- 

 ers blue-purple, about 2 cm. long; corolla toothed on the mid- 

 lobe of lower lip; filaments with a tooth on upper part; 

 nutlets about 1.6 mm. long, yellow-brown, lustrous, obtusely 

 compressed-trigonous, rounded at apex, with few pale longi- 

 tudinal lines on margin and on both faces, the areole small. 



June- Aug. Sunny places in lowlands and mountains; 



Hokkaido, Honshu, Shikoku, Kyushu; common. 



Var. aleutica Fern. P. japonica Makino; P. vulgaris var. 



japonica (Makino) Kudo ^Miyama-utsubogusa. Stems 



suberect from the base, estoloniferous, innovation shoots short. 



11. CHELONOPSIS Miq. Jak5-so Zoku 



Tall erect herbs sometimes slightly woody at base; leaves coarsely toothed; verticils loosely 2- to 10-flowered, distant; flowers 

 relatively large; calyx papyraceous, campanulate, 10-nerved, much inflated in fruit, bilabiate, the upper lip 3-toothed, the lower 

 lip 2-toothed; corolla-tube ampliate, the limb subbilabiate, the upper lip retuse, the lower lip 3-lobed, ascending, the midlobe 

 larger than the others; stamens 4, didymous, the anther-locules bearded in front; style with 2 equal lobes; nudets flattened 

 dorsally, veiny, winged on upper margin. Few species, in Japan and China. 



lA. Peduncles 2-12 mm. long, nearly as long as the petiole. 

 IB. Peduncles 3-4 cm. long, much longer than the petiole. . 



1. C. moschata 

 . 2. C. longipes 



1. Chelonopsis moschata Miq. C. moschata var. sub- 

 glabra Miq.; C. subglabra (Miq.) Koidz.; C. yagiharana var. 

 jesoensis Koidz.; C. yagiharana Hisauchi & Matsuno; C. sub- 

 glabra var. jesoensis (Koidz.) Hara; C. moschata var. jesoensis 

 (Koidz.) Miyabe & Tatew.; C moschata var. lasiocalyx Hayata 



Jako-s6. Rhizomatous; stems tufted, erect, 60-100 cm. 



long, declined or ascending in upper part, simple, loosely pilose 

 or nearly glabrous; leaves membranous, narrowly obovate or 

 broadly oblanceolate, 10-20 cm. long, 3-10 cm. wide, long- 

 acuminate, usually auriculate at base, scattered-pilose above. 



loosely spreading-pilose on nerves beneath, the petioles 5-12 

 mm. long; flowers 1-3, in axillary cymes; calyx 1-1.5 cm. 

 long at an thesis, ovoid-globose, to 18 mm. long in fruit, the 

 lower lip at anthesis shorter than the upper; corolla rose- 

 colored, tubular, 4-4.5 cm. long, with a short upper lip; nut- 

 lets 7-8 mm. long, elliptic, glabrous, flattened. Aug.-Sept. 



Wet places along streams and valleys; Hokkaido, Honshu, 

 Shikoku. 



2. Chelonopsis longipes Makino. C. moschata var. 

 longipes Makino Tani-jak6-so. Stems 50-100 cm. long. 



