346 L^APLTITS. 



Some Oriental Rubus Allies. 



If I gave to the genus Paemena an oriental name, it was ■with 

 the fact in mind, that it seems to have its fuller development on 

 the Asian shores of the Pacific. There the species are all 

 simple-leaved, yet in habit, inflorescence, flowers and fruit, ap- 

 parently at fall agreement with Rubus spectabilis. Several of 

 them will take names as follows under Paembsta. 



P. palmata. Thunberg, under Rubus. 



P. INCISA. " " " 



P. Grayana. Maximowicz, " " 



A most interesting congener of the Northwest American 

 BossEKiA NtTTKANA {==Rubus Nuikanus, Moc.) occurs, as 

 might have been anticipated, in Japan ; that is to say, 



B. PELTATA ( = Rubus peltatus, Maxim.) With the habit, 

 inflorescence, and flower of typical Bossbkia — even to the ex- 

 cessively numerous pistils that Necker makes the most essential 

 character of the genus — the oriental species is not wholly un- 

 armed. Its specific name points to the fact that the two 

 basal lobes of the angled foliage, instead of forming a sinus as 

 in other species, are quite grown together, so that technically 

 speaking the leaf is peltate. 



In habit and foliage suggestive of our American Dalibarda, 

 yet extremely unlike it in character, is a Japanese type which [ 

 may denominate 



Calyctbnium. Herbaceous perennial, prostrate, rooting at 

 some nodes. Leaves orbicular, simple, dentate ; stipules folisi- 

 ceous but laciniate-parted. Peduncles solitary, terminating 

 upright leafy branches, these and also the petioles aculeolate, the 

 calyx very densely so, and with long straight prickles ; segments 

 of calyx unequal, large, 2 usually smaller and subentire, 3 

 deeply pec tinate-pinnatifid. Petals white, abruptly uuguiculate. 

 Pistils rather many. 



C. PECTINELLUM. Maximowicz nnder Rubus. 



