202 



distinct fi'om the species growing in the Mount Lofty Ranges, 

 but believed the latter to be identical with 1'. (kKpectans. 

 This is not the case. The plant in the neighbourhood of 

 Adelaide is certainly not P. dcspertans (which has still to 

 be recorded for this State), but is undoubtedly Brown's r. 

 nigricans. For this reason I have deleted P. chspccfans from 

 the list and reinstated P. Tepperi. Still another nomen 

 iiuduiii appears under the authority of Tate in the Trans- 

 actions of this Society (vol. xix., p. 82) as P. Fifz- 

 gtraldi (Deane). I wrote Mr. Henry Deane, of Sydney (a 

 friend of the late R. D. Fitzgerald), for information regard- 

 ing this matter, but found him unable to assist in any way 

 towards the identification of this plant. The name, however, 

 has since been rescued from oblivion. With a view of con- 

 tinuing Fitzgerald's monumental work on "Australian Or- 

 chids," Mr. J. H. Maiden (Sydney) was last year looking 

 through the materials left by its author, when he came across 

 a plate not yet published, containing an illustration, but 

 no description, of P. Fitzgeraldi. 



I had no difficulty in recognizing it as a form with which 

 I was perfectly familiar, and which I had put aside for pur- 

 poses of this paper. Its description now appears for the first 

 time under our joint names. 



The name P. patens has been applied to at least three 

 very distinct forms in this and, I believe, in other States. 

 The individuality of these must in future be recognized. I 

 have retained the original name for the widely-distributed 

 Port Jackson type, whence Brown derived his first 

 specimen. The other two I have named P. odoratvm and 

 P. alh'um respectively. 



These alterations, together with certain other new 

 forms described in this paper, will leave the genus repre- 

 sented in South Australia by fourteen recorded species. I 

 have reason to believe that this number will be still further 

 increased before long. 



Sec. I. 

 Tip of lateral appendages bifid : flowers 

 minute — 



Labellum with recurved pointed tip ; no 



glands on tip of lateral petals P. inigricnns 1 



Labellum quite blunt at tip ; pedicel- 



lated glands on tips of lateral petals P. Tepperi 2 



Sec. II. 

 Tips of lateral appendages undivided ; 

 flowers over 4 lines — • 

 A. Lateral index ovei- 90. 



(n) Lateral sepals connate. 



Flowers over 8 lines. Mem- 

 branous part of labellum 

 greatly exceeding callous part P. Anstralc 3 



