Salmon. — On a yew Isotachis. 325 



Plate XVII. 

 Myosotidium nobile. growing in same locality as Cotula, in Plate XVI. 



Plate XVIII. 



Isolated plant of Olearia semidentata, with formation of Dracophyllum 



paludosum in background. Tableland .-outb of Ctiatharn Island. 



Plate XIX. 



Portion of formation shown in Piute XVIII., with juvenile plant of 

 Dracophyllum arboreum in foreground still in the broad-leaved 

 stage. In background is Dracophyllum paludosum. 



Art. XXIX. — On a Neiv Zealand Isotachis new to Science. 



By Ernest S. Salmon. 



Communicated by Robert Brown. 



[Read before the Philosophical Institute of Canterbury, 6th November, 



1901.} 



Plate XX. 



The following description of a New Zealand Isotachis by 

 Mr. E. S. Salmon, of Charlton House, Kew, was taken from 

 specimens which I sent to him for determination. His de- 

 scription (which I am able to confirm) was published in 

 the Revue Bryologique for June. 1901, at page 75. He has 

 sent me copies of his paper, with drawings, one of which, 

 with specimens of the plant, has been placed in the Mu- 

 seum at Christchurch. 



Isotachis stephanii, sp. nov. 



Robusta, dense caespitosa, flaccida, sordide badia ; caule 

 usque ad 8 cent, longo flexuoso supra in ramulos subjulaceos 

 partito interdum simplici inferne sordide badio apice lsete 

 badio, foliis distichis dense imbricatis flaccidis tenuibus 

 erectis vel erecto-patentibus amplexicaulibus subcomplicatis 

 late oblongis 3-3 - 5 mm. longis 2 5-3 mm. latis basi ventri- 

 cosis margine integro vel obtuse dentato ad 1/7 bifidis sinu 

 infra plus minus angustato segmentis late triangularibus 

 plerumque minute apiculatis cellulis superioribus firmis 

 quadratis et breviter rectangulis 30-50 /x longis 12-20 p latis 

 parietibus plus minus incrassatis trigonis nullis, cellulis 

 inferioribus elongato- rectangulis, amphigastriis foliis paulo 

 minoribus 2 - 5-3 mm. longis 2 mm. latis parum concavis 

 caeteris conformibus. 



Reliqua ignota. 



