THE GENUS VELLEIA SM. E. C. Carolin University of Sydney (Plates i and n) [Read 29th March, 1967] Synopsis A systematic treatment of the genus is provided. All species recognized are described, the types together with other specimens are cited. The following species are described as new: 7. glaorata and V. parvisepta. A key for the identification of the species is given. The genus Velleia is restricted to Australia and New" Guinea so far as its distribution is known to date. The last complete treatment of the genus is due to Krause (1912) since which date there has been considerable collection and a revision has been found necessary. The main outlines of Krause's treatment remain intact except in his delimitation of the genus. Fig. 1. Diagram of generalized expanded corolla of Velleia to show the various measurements given for each species, a, length of inferior lobe; b, breadth of inferior lobe; c, length of connate part of inferior lobes; d, length of superior lobe; e, width of superior lobe; f, width of auricle; g, length of tube. Velleia can be recognized by its characteristic habit. The stem is distinct and elongated in two species in sect. Euthales but otherwise is usually very reduced and converted into a short caulorrhiza. From this stem arise peduncles bearing (usually) much branched dichasia. The inflorescence is thus a thyrse and the habit is derived directly from the characteristic Goodenia form (Troll, 1964; Carolin, 1967). One series of measurements that requires explanation is that relating to the corolla. This is set out in Fig. 1. The cytotaxonomy has been discussed previously and is known to be remarkably uniform throughout the genus with a basic number of eight Proceedings of the Linnean Society of New South Wales, Vol. 92, Part 1
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