8 Transactions. — Botany. 



two regions, either near Napier on the east coast or Otaki on 

 the west. In addition, I have from these places a number of 

 the Desmids described by Nordstedt. The following plants 

 should therefore have habitats attached to them as fol- 

 lows ; — 



HawJcc's Bay. — Sphaerozosma excavatum, Cosmarium mi- 

 nutum, Cosm. sexangulare, Cosm. arctoum, Cosm. blyttii, 

 Cosm. repandum, Cosm. pseudopyramidatum, Xanthidium 

 fasciculatum /? perornatum, Staurastrum sub-denticulatum, 

 Staur. sebaldi, Staur. sagittarium, Staur. renardi, Penium 

 polymorphum, Closterium brebissonii. 



Otaki. — Hyalotheca dissiliens, Hyal. hians, Bambusina 

 borreri, Aptogonum undulatum, Sphsrozosma excavatum, 

 Sphaer. pulchellum, Phymatodocis nordstedtiana, Onychonema 

 filiforme, Micrasterias decemdentata rar. upsaliensis, Micr. 

 papillifera, Euastrum ansatum, Eu. longicolle, Eu. cuneatum, 

 Eu. sphyroide, Cosmarium sexangulare, Cosm. arctoum, Cosm. 

 trilobulatum var. basichondrum, Cosm. nitidulum, Cosm. 

 (Euastrum) sublobatum, Cosm. punctulatum, Cosm. sub- 

 punctulatum, Cosm. obsoletum var. punctatum, Cosm. pseudo- 

 pachydermum, Cosm. turgidum, Cosm. pseudopyramidatum, 

 Cosm. sublatum, Cosm. venustum, Cosm. genuosum, Cosm. 

 quadratum, Cosm. exiguum, Cosm. amoenum var. mediolaeve, 

 Xanthidium smithii var. variabile, Xanth. armatum var. basi- 

 deutatum, Xanth. fasciculatum var. perornatum (forma super- 

 numeraria), Xanth. intermedium, Xanth. simplicius, Xanth. 

 dilatatum, Xanth. octonarium, Arthrodesmus incus, Stauras- 

 trum muticum, Staur. corniculatum var. variabile, Staur. sub- 

 denticulatum, Staur. tetracerum, Staur. sexangulare, Staur. 

 sebaldi, Staur. pseudosebaldi, Staur. spencerianum, Staur. 

 dejectum, Staur. sagittarium, Tetmemorus brebissonii, Penium 

 digitus. Pen. margaritaceum. Pen. closterioide, Pen. lamel- 

 losum, Pen. polymorphum, Docidium ehrenbergii, Doc. nodo- 

 sum, Doc. rectum, Triploceras tridentatum var. superbum, 

 Tripl. gracile var. aculeatum, Tripl. gracile var. bidentatum, 

 Spirotoenia condensata, Closterium selenaeum, Clost. striola- 

 tum, Clost. lineatum var. sandvicense, Clost. lunula, Clost. 

 gracile, Clost. decorum, Clost. kiitzingii, Clost. ehrenbergii, 

 Clost. acerosum, Clost. acutum, Clost. intermedium. 



My thanks are due to Professor Nordstedt; to Mr. W. Bar- 

 well Turner, of Leeds ; to Herr G. Lagerheim, of Stockholm ; 

 and others, who have kindly assisted me with advice, figures, 

 and specimens ; and also to Mr. C. W. Lee, of Otaki, who 

 has been assiduous in forwarding to me gatherings from that 

 place in which occur many of the plants mentioned in these 

 pages. 



