Labiatae 783 



abruptly short-petiolate; flowers in a short terminal spike; mountains, or sometimes near the sea; Hokkaido, Honshu, 



upper lip of calyx toothed; corolla rose-purple, 7-8 mm. long, Kyushu. Korea, n. China, Manchuria, Mongolia, and Si- 



about 5 mm. across; nudets orbicular, slighdy flattened, about beria. 



1 mm. across. June-July. Rocky sunny places in high 



21. PERILLA L. Shiso Zoku 



Erect annual; leaves opposite, toothed; verticils 2-flowered, in dense or loose terminal spikes; floral leaves bractlike; flowers 

 small; calyx campanulate, 5-toothed, slightly accrescent in fruit, bilabiate, inflated in front at base, the upper lip 3-toothed, the 

 lower lip 2-fid; corolla-tube short, the limb 5-lobed, the lower lobes slighdy larger; stamens 4, nearly equal, erect or ascending; 

 nudets globose, reticulate. Few species, in e. Asia and India. 



1. Perilla frutescens (L.) Britt. var. japonica (Hassk.) shorter; calyx 6-8 mm. long in fruit; nudets 1.2-1.5 mm. 



Hara. P. ocimoides var. japonica Hassk. E-goma. Erect across. Hills and mountains; Honshu, Shikoku, Kyushu. 



branched annual; stems 20-70 cm. long, long-pubescent; leaves Var. hirtella (Nakai) Makino & Nemoto. P. hirtdla Na- 



green, broadly ovate, 7-12 cm. long, 5-8 cm. wide, abrupdy kai Tora-no-o-jiso. Spikes slender; calyx smaller, 5-6 



acute or acuminate, rounded to broadly cuneate at base, mm. long in fruit. Honshu. May be a hybrid of var. citrio- 



toothed, long-pubescent especially on nerves, long-pedolate; dora X var. crispa. 



spikes 4-8 cm. long, rather one-sided, densely many-flowered, Var. crispa (Thunb.) Deane. Ocimum crispum Thunb.; 



the axis prominendy pubescent, the bracts deltoid-ovate, Dentidia nan\mensis Lour.; P. ocimoides var. crispa (Thunb.) 



longer than the pedicels; calyx 3-4 mm. long in anthesis, 8-12 Benth.; P. frutescens var. nan\inensis (Lour.) Britt. 



mm. long in fruit, long-pubescent; corolla whitish, 4-5 mm. Chirimen-jiso. Stems soft-pubescent; leaves green or deep 



long; nutlets globose, slighdy compressed, about 2 mm. across, purple, long-pubescent beneath especially on nerves, thinly 



reticulate. Aug.-Oct. Widely cultivated for oil-yielding pilose above, the margins wrinkled; spikes 5-15 cm. long, 



seeds; naturahzed in our area. se. Asia. rather long-pubescent; calyx 7-10 mm. long in fruit; nudets 



Var. citriodora (Makino) Ohwi. P. ocimoides var. typica about 1.5 mm. across. Widely cultivated. Forma viridis 



forma citriodora Makino; P. citriodora (Makino) Nakai (Makino) Makino. P. ocimoides vars. a-ispa, viridis, discolor, 



Remon-e-com-\. Stems rather densely short soft-pubescent; and purpurea of Makino. Shiso. Plants with margins 



leaves loosely pubescent beneath; spikes elongate after anthesis, of the leaves flat. 

 to 10-18 cm. long, rather loosely flowered and the hairs 



22. PERILLULA Maxim. Suzu-koju Zoku 



Stoloniferous perennials; leaves opposite, small, toothed; verticils 2- to 6-flowered, in loose, simple or subcompound racemes; 

 floral leaves small, linear, bractlike; calyx obliquely campanulate-obconical, 10-nerved, bilabiate, accrescent, the upper lip 3-lobed, 

 the lower one 2-lobed; corolla small, campanulate-infundibuliform, die tube short and broad, without a ring of hairs inside, the 

 limb obsoletely bilabiate, the upper lip retuse, the lower one shallowly 3-lobed; stamens 4, slighdy didymous, the anthers with 

 parallel locules; nudets elliptic, small. A single species, in Japan. 



1. Perillula reptans Maxim. Suzu-koju. Stems 20- l-3(-5) nun. long, the pedicels spreading, 5-7 mm. long; 



40 cm. long, tuberlike and decumbent at base, then erect, calyx 2.5 mm. long at anthesis, 6-7 mm. long and deflexed in 



4-angled, green, with scattered white recurved hairs; leaves fruit, lobes of lower lip obscurely spine-tipped, longer than the 



membranous, ovate or rhombic-ovate, 2-A cm. long, 1-2.2 cm. upper lip, the upper hp with 3 short teeth; corolla white, 5-6 



wide, acute at apex, broadly cuneate at base, coarsely toothed, mm. long, about 4 mm. across; nudets narrowly elliptic, 



thinly pilose above and on nerves beneath, the petioles 1-2 cm. slighdy compressed, 1.7 mm. long. Aug.-Dec. Honshu 



long; racemes terminal, short-pedunculate, 4-10 cm. long, (w. Tokaido and Kinki Distr.), Shikoku, Kyushu. Ryu- 



loosely flow'ered, recur\'ed white-puberulent, the bracts linear, kyus. 



23. MENTHA L. Hakka Zoku 



Aromatic perennial herbs; leaves usually toothed; verticils densely many-flowered, globose, remote or spicate, die bracteoles 

 minute; flowers pedicellate, small, white to rose; calyx campanulate or tubular, 5-toothcd, often with long hairs on throat; 

 corolla campanulate, the limb equally 4-lobed; stamens 4, equal, erect, the anther-locules distinct, parallel; nudets ovate, small, 

 smooth or reticulate. About 20 species, in temperate and warmer parts of the N. Hemisphere. 



lA. Stems, leaves, and calyx pubescent; leaves distinctly toothed; calyx-teeth acuminate; verticils loose, many. 



1 . M. arvensis var. piperascens 



IB. Stems, leaves, and calyx nearly glabrous, the nodes of stems sometimes pubescent; leaves entire or nearly so; calyx-tccth obtuse; verticils 



2-6, forming a short 1 0- to 20-fIowcrcd umbel-like spike 2. M. japonica 



1. Mentha arvensis L. var. piperascens Malinv. M. sis forma pilosa Hara Hakka. Perennial; stems 20-40 



arvensis var. sachalinensis Briq.; M. sachalinensis (Briq.) cm. long, scattered-pubescent; leaves ovate to narrowly so. 



Kudo; M. haplocalyx sensu auct. Japon., non Briq.; M. haplo- oblong, 2-5 cm. long, 1-2.5 cm. wide, acute at both ends, 



calyx var. sachalinensis (Briq.) Briq. ex Kudo; M. sachalinen- acutely toothed, glandular-dotted on bodi sides, the petioles 



