Polemoniaceae; Bor/vginaceae 755 



lanceolate, acute; corolla-lobes subacute or obtuse, sparingly flortim (Regel) Miyabe & Kudo; P. caendcum subsp. vulgare 



ciliate; capsules globose, about 5.5 mm. long; seeds 3-4 mm. var. racemostim Miyabe & Kudo; P. laxiflorum (Regel) Kitam. 



long. July-Aug. Alpine slopes; Honshu (centr. distr.); Karafuto-hana-shinobu. Calyx 7.5-9.5 mm. long, rather 



rare. deeply 5-lobed, the lobes subobtuse to acute. June-July. 



Var. laxiflorum (Regel) Ohwi. P. caeruleum var. vulgare Hokkaido. The typical phase occurs in Sakhalin, Kuriles, 



lus. laxiflorum Regel; P. caeruleum subsp. vulgare var. laxi- and the cold regions of the N. Hemisphere. 



Fam. 173. BORAGINACEAE Murasaki Ka Borage Family 



Usually strigose-hirsute herbs, shrubs, or trees; leaves alternate, very rarely opposite, simple, exstipulate; flowers in scorpioid 

 cymes, actinomorphic, rarely oblique, usually bisexual; calyx-segments imbricate or rarely valvate in bud; corolla-lobes contorted 

 or imbricate in bud; stamens inserted on die corolla-tube, as many as the lobes and alternate with them; anthers 2-locular, longi- 

 tudinally split; disc sometimes absent; ovary superior, 2-locular, becoming falsely 4-locular at maturity; style terminal or gyno- 

 basic; ovules 4, 2 in each locule, erect or spreading; fruit a drupe or composed of 4 nutlets; seeds with or without endosperm. 

 About 90 genera, with about 1,500 species, nearly cosmopolitan. 



lA. Fruit a drupe, undivided, with 1-4 nutlets; style terminal. 



2A. Trees or large shrubs; style without annulus near apex 1 . Ehrelia 



2B. Herbs or shrubs; style with an annulus below the bifid stigma 2. Messerschmidia 



IB. Fruit of 4 nutlets; style gynobasic. 

 3.A.. Nutlets attached near apex. 



4A. Nutlets flat or gendy convex on back 3. Cynoglossum 



43. Nutlets excavated on back 4. Omphalodes 



3B. Nudets attached near center or base. 

 5A. Nutlets prickly or spinulose. 



6A. Perennials; inflorescence bractless or bracteate at base; nutlets with a small attachment at the gynobase, sometimes without 



prickles; rosulate radical leaves present in anthesis 5. Eritrichium 



6B. Annuals or biennials; inflorescence bracteate; rosulate radical leaves not present in anthesis. 



7A. Pedicels and mature calyx erect or ascending; nutlets as long as the gynobase, attached nearly the whole length along the 



keeled ventral side 6. Lappula 



7B. Pedicels and mature calyx reflexed; nutlets twice as long as the gynobase, attached on the upper half of ventral face. 



7. Hac^elia 

 5B. Nudets neither prickly nor spinulose, smooth, wrinkled or short-tubercled. 



8A. Nutlets short-tubercled, attached on ventral side to the convex gynobase, the attachment with a ringlike raised margin. 



8. Bothriospermum 

 8B. Nudets smooth or wrinkled, attached at the base to the flat gynobase. 

 9A. Corolla-lobes imbricate in bud. 



lOA. Corolla infundibuliform-campanulate or tubular-campanulate, the tube prominent. 

 1 lA. Nudets bony and lustrous, not compressed. 

 12 A. Nutlets ovoid, not hooked at apex. 



13 A. Corolla-throat decorated inside with 5 well-developed vertical lines of hairs 9. Buglossoides 



13B. Corolla-throat lacking very well developed vertical lines of hairs 10. Lithospermum 



12B. Nutlets elongate and hooked at apex 11. Ancistrocarya 



1 IB. Nutlets sometimes fleshy, usually flattened dorsally 12. Mertensia 



lOB. Corolla rotate, 5-scaled on the throat; nutlets tetrahedral or slighdy flattened dorsally 13. Trigonotis 



9B. Corolla-lobes contorted in bud; nutlets slightly flattened H. Myosotis 



1, EHRETIA L. Chisha-noki Zoku 



Smooth or scabrous shrubs or trees; leaves alternate, entire or toothed; flowers small, usually white, in cymes, corymbs or 

 panicles; calyx small, 5-parted, the segments linear or broader, imbricate or not overlapping in bud; corolla rotate or tubular, the 

 lobes 5, imbricate in bud, spreading; stamens 5, inserted on the tube, the anthers usually exserted; ovary 2-locular, with an im- 

 perfect septum in each locule or 4-locular; style solitary, terminal, the stigma bifid; drupe small, 2- or 4-stoned. About 50 



species, chiefly in the warmer regions of the Old World. 



lA. Young branches and upper side of leaves scabrous; leaves 5-12 cm. wide; inflorescence corymbose-paniculate, rather flat-topped; corolla 

 8-10 mm. long; fruit 1-1.5 cm. across 1. E. dick,sonii var. japonica 



IB. Young branches and leaves glabrous; leaves 3-7 cm. wide; inflorescence paniculate, pyramidal; corolla 4-5 mm. long; fruit 4-5 mm. 

 across 2. E. ovalijoUa 



1. Ehretia dicksonii Hance var. japonica Nakai. E. prominently scabrous and appressed-strigose on upper side, 



macrophylla sensu auct. Japon., non Wall.; E. dick^sonii var. densely short-hairy beneath, irregularly deltoid-serrate, the 



liu/^iuensis Nakai; E. dicksonii var. velutina Nakai Maru- petioles 3-4 cm. long; panicles terminal, short-pilose, nearly 



BA-CHiSHA-No-Ki. Dcciduous tree with rather diick scabrous flat-topped; calyx about 4 mm. long, deeply 5-fid, the lobes 



branches while young; leaves broadly elliptic to broadly obo- broadly lanceolate or narrowly oblong, obtuse to subacute, 



vate, 5-17 cm. long, 5-12 cm. wide, sometimes nearly orbicular, short-pilose; corolla 8-10 mm. long, white; fruit globose, 1-1.5 



