Differences among Kalanchoe spathulata DC., K. crenata (Andrews) Haw., K. integra (Medik.) Kuntze, K. deficiens (Forssk.) Asch. & Scheweinf., K. rosea C.B.Clarke, K. laciniata (L.) DC., and K. ceratophylla Haw. are discussed and evaluated. Variations of Kalanchoe spathulata DC. and allied species are taxonomically examined. Seven varieties are recognized in K. spathulata. Three, var. baguioensis, simlensis, staintonii, are newly described; four new combinations, var. annamica, dixoniana, garambiensis, schumacheri, are proposed. A variety of K. ceratophylla Haw., var. indochinensis, is described.

Somatic chromosome numbers of two Japanese species of Deutzia are reported. The chromosome number 2n = 78 was found in D. bungoensis Hatus. collected from Okayama Prefecture, W. Honshu; 2n = 130 was in D. ogatae Koidz. from Ehime Prefecture, Shikoku. The chromosome number of D. ogatae and 2n = 78 in D. bungoensis were reported for the first time.

Chromosome numbers of the following six Japanese species of Pellionia (Urticaceae) are reported: P. brevifolia (2n = 39), P. japonica (2n = 52), P. minima (2n = 26, 39, 52 and 65), P. radicans (2n = 39, 52 and 65), P. scabra (2n = 26, 39, 52 and 65) and P. yoshiei (2n = 39), all of which being first records. Each of P. brevifolia, P. japonica and P. yoshiei shows a single ploidy level, whereas intraspecific polyploidy is observed in P. minima, P. radicans and P. scabra.

The genus Tadehagi founded by the author in 1973 is revised. It is divided into two genera: Tadehagi with a new circumscription and a new genus Akschindlium H.Ohashi based on Tadehagi godefroyanum (Kuntze) H.Ohashi. Pollen features of three species representing the genera Tadehagi, Akschindlium and Droogmansia are provided. The newly circumscribed Tadehagi is divided into two subgenera: Tadehagi and Kerria. A key to these genera and subgenera is provided. Tadehagi comprises six species: T. alatum (DC.) H.Ohashi, T. auriculatum (DC.) H.Ohashi, T. andamanicum (Balakr. & N.G.Nair) S.P.Mathew, T. robustum Pedley, T. rodgeri (Schindl.) H.Ohashi and T. triquetrum (L.) H.Ohashi. Tadehagi triquetrum varies in the leaf shape and loment hairiness especially in the Lesser Sunda Islands, New Guinea and the Philippines. The species is newly circumscribed as including subsp. pseudotriquetrum (DC.) H.Ohashi and a hybrid between subsp. pseudotriquetrum (DC.) H.Ohashi and subsp. triquetrum, nothosubsp. philippinensis H.Ohashi. The hybrid includes a variety, var. palawanensis H.Ohashi. Tadehagi triquetrum subsp. triquetrum is newly recorded in Taiwan. A key to these species, subspecies and hybrids is also provided.

Primula farinose L. subsp. modesta (Bisset & Moore) Pax is distributed in the Kuriles, Hokkaido, Honshu, Shikoku and S. Korea. The leaf of this species is very variable, but their leaf-forms are characteristic at the local level. This paper reports the division of the subspecies into six varieties according to leaf-form.