Notes on Tiliaceae in Australia, 4. A revision of the stellate-haired species of the genus Corchorus L

Abstract

Twenty-two species are recognised and a key is provided for their identification. The following species are newly described: C. aulacocarpus Halford, C. carnarvonensis Halford, C. congener Halford, C. incanus Halford, C. lasiocarpus Halford, C. mitchellensis Halford, C. obclavatus Halford, C. puberulus Halford, C. subargentus Halford, C. sublatus Halford and C. tectus Halford. Three new combinations C. sericeus subsp. densiflorus (Benth.) Halford, based on C. walcottii var. densiflorus Benth.; C. sidoides subsp. rostrisepalus (Domin) Halford, based on C. rostrisepalus Domin; C. sidoides subsp. vennicularis (F.Muell.) Halford, based on C. vennicularis F.Muell., are made. Two new subspecies are described: C. incanus subsp. lithophilus Halford and C. lasiocarpus subsp. parvus Halford. All new taxa are illustrated, while all taxa are described and mapped, and notes on their distribution, habitat and phenology are given. Lectotypes are chosen for Nettoa crozophorifolia Baill., C. elderi F.Muell., C. pumilio R.Br. ex Benth., C. rostrisepalus Domin, C. sidoides F.Muell., C. tomentellus F.Muell., C. walcottii F.Muell. and C. walcottii var. densiflorus Benth. All known synonyms are listed here including manuscript names that were used to identify taxa prior to their formal naming in this publication. Key words: Tiliaceae, Corchorus, Australian flora, taxonomy, nomenclature