A revision of infrageneric classification in Astelia Banks & Sol. ex R. Br. (Asteliaceae) Author Birch, Joanne L. Department of Botany, University of Hawaii at Manoa, Honolulu, HI, 96822, USA & Present address: Royal Botanic Gardens Victoria, Birdwood Avenue, Melbourne, Victoria 3004, Australia joanne.birch@rbg.vic.gov.au text PhytoKeys 2015 2015-07-13 52 105 132 http://dx.doi.org/10.3897/phytokeys.52.4768 journal article http://dx.doi.org/10.3897/phytokeys.52.4768 1314-2003-52-105 7231FF88FFDAFFDAFFE45C4DDD06DF0F 576273 Astelia subg. Collospermum (Skottsb.) Birch stat. nov. Basionym: Collospermum Skottsb., Kongl. Svenska Vetensk. Acad. Handl. Ser. 3, 14(2): 72. 1934. Type: Collospermum hastatum (Colenso) Skottsb. [Lectotypified by Moore and Edgar (1976) ]. Note. Open growth form; leaves linear or ensiform with dark coloration at base and peltate branched hairs; inflorescences bearing many flowers; flowers with a long perianth tube (1.3-3.1 mm); staminate flowers with long filaments (3.8-8.6 mm), anthers basifixed, immobile; pistillate flowers with long outer tepals (1.5-6.2 x 0.9-1.6 mm); ovary trilocular, intermediate length (2.1-4.8 mm); fruit globose or obpyriform, with few to many seeds per fruit (1-22); seeds ellipsoid or ovoid, small and narrow (1.3-2.1 x 0.1-1.1 mm); funicle short, truncate, with well-developed mucilaginous funicular hairs that adhere to the seed. Remarks. Species published under Collospermum must be transferred as Astelia has nomenclatural priority. Synapomorphies recognized for the genus Collospermum ( Skottsberg 1934 ) remain valid for Astelia subg. Collospermum . Included species and distribution. New Zealand: Astelia hastata Colenso, Astelia microsperma Colenso pro parte . Republic of Fiji, Viti Levu, Vanua Levu, Kandavu; Republic of Vanuatu, Espiritu Santo, Tanna, Aneityum: Astelia montana Seem. Independent State of Samoa, Savai'i , Upolu: Astelia samoense (Skottsb.) Birch. Habitat. Lowland temperate forest ( Astelia hastata and Astelia microsperma ) and montane tropical cloud forest ( Astelia montana and Astelia samoense ).