* This month the Malvaceae volume of the Flora of Tropical East Africa has been published. I haven't seen it. However new species described in there are listed in the International Plant Name Index.
- Abutilon eggelingii Verdc. (pg. 129)
- Abutilon pilosicalyx Verdc. (pg. 120)
- Abutilon subprostratum Verdc. (pg. 120)
- Hibiscus holstii Mwachala (pg. 40)
- Hibiscus kabuyeanus Mwachala (pg. 60)
- Hibiscus masasianus Mwachala (pg. 68)
- Pavonia dimorphostemon Verdc. (pg. 30)
* A new species of Wissadula, W. stipulata, was described by Massimo Bovini in Novon 19(1): 15-17 (Una Nueva Especie y Combinación en Wissadula (Malvaceae))
* Paul Fryxell described Sida calva and Sida florulenta in a paper in which he revises a part of Sida sect. Nelavaga, to which he gives the name of subsect. Conglomerata. (A New South American subsection of Sida sect. Nelavaga (Malvaceae) with Two New Species, Lundellia 12: 15-27)
* Ceiba rubriflora, from the Serra do Ramalho in Bahia in Brazil, is described in a paper in Kew Bulletin (Jefferson Guedes de Carvalho-Sobrinho1 and Luciano Paganucci de Queiroz, Ceiba rubriflora (Malvaceae: Bombacoideae), a new species from Bahia, Brazil, Kew Bulletin 63(4): 649-653). It is distinguished from C. erianthos by the possession of sessile leaflets and red petals.
* Two Malagasy species of Dombeya (D. asymmetrica and D. rienanensis) are described in a second paper in Novon. (Wendy L. Applequist, Two New Species of Dombeya (Malvaceae) from Madagascar, Novon 19(3):289-294)
* Guichenotia anota (which has been around as a manuscript name for a while) is now published in Wilkins, C.F. & Whitlock, B.A., Guichenotia anota and Guichenotia apetala (Lasiopetaleae: Byttneriaceae or Malvaceae s. lat.) a new and a revised species endemic to the Ravensthorpe Range, south-west Western Australia, Nuytsia 19(1): 181–190.
* A 4th Malagasy species of Hildegardia, H. dauphinensis, is described in a paper in Adansonia (John G. Zaborsky, Hildegardia dauphinensis (Malvaceae, Sterculioideae): a new species from southeastern Madagascar, Adansonia, sér. 3, 31 (1) : 143-148). It differs from H. perrieri in possessing "distinctive multi-branched stellate hairs on the calyces and leaves, and in having flat (not revolute) leaf blades".
* A new species of Heliocarpus, H. parvimontis, is described from the Balsas river basin of southern Mexico. (Martha Gual-Díaz y Elizabeth Moreno-Gutiérrez, A new species of Heliocarpus (Tiliaceae) from the Balsas River Basin, Guerrero, Mexico, Revista Mexicana de Biodiversidad 80: 283-286)
* A hybrid, Lavatera ×columbretensis, between L. arborea (Malva arborea) and L. mauritanica (M. durieui), is described from a Spanish offshore island. (Ana Juan & Manuel B. Crespo, A New Wild Hybrid in Lavatera (Malvaceae), Flora Montiberica 41: 3-9). The paper is ambiguous on this point - the cytology not yet having been investigated - but I have the impression that this is a true-breeding hexaploid (2n=126) population, and the × could be dropped.
* [Update 30 Dec 09] A new genus, Spirabutilon, and species, S. citrinum, from Espirito Santo in Brasil, has been described by Antonio Krapovickas, in Bonplandia (Corrientes). (Tip of the hat to Professor Fryxell.)
* [Update 02 Jan 10] I forget to mention, because as a fossil species it is not listed in IPNI, the description of a third fossil species of Craigia, C. hainanensis, from Hainan island.