27 



From P. squamata, Br., it may be distinguished by the 

 absence of the withered radical rosette and numerous stem- 

 bracts which characterize that species; also by the absence of 

 long hairs on the vestigial appendage and by the presence of 

 turgid pyriform swellings on the under-surfaoe of the labellum. 



The following table will indicate the position of the new 

 Pterostylis in regard to related species: — 



Leaves in a radical rosette, persistent or 



fading away before flowering; flowers 



usually multiple. 



Sepals all obtuse, lower lip shortly bilobed ; 



flowers diminutive; rosette green. 



Slender species, appendage labellum 



pointing backwards ... 1. P. mutica 



Rather stout species, appendage labellumi 



looking forwards 2. P. cycnocephala 



Sepals caudate or acute, lower lip deeply 

 bilobed. 

 Sepals caudate; labellum fleshy, tip 

 depressed ; bracts few ; rosette 

 green; flowers not diminutive ... 3. P. Mitchelli 

 Sepals caudate; labellum fleshy, tip up- 

 turned ; bracts numerous ; rosette 

 withered; flowers not diminutive ... 4. P. squamata 

 Sepals caudate; labellum membranous, 

 tip upturned ; bracts few ; rosette 

 withered; flowers not diminutive ... 5. P. rufa 

 Sepals acute but not caudate ; labellum 

 fleshy, tip straight ; bracts 2, rosette 

 green; flowers diminutive 6. P. pusilla 



This plant blooms early in October, which is later than 

 P. Mitchelli, so far as this State is concerned, but considerably 

 earlier than P. rufa or P. squamata. 



It has reached me from the following localities : — 

 South Australia — Geranium, Miss Nora E. Jacob; Wirrega, 

 Prof. Osborn. Victoria — The Grampians, C. Walter; Greens- 

 borough, E. E. Pescott; Blackburn, Miss Dorothy Coleman. 



The specific name pusilla has reference to its diminutive 

 size. 



3. Prasophyllum regium, n. sp. 



Plant robust, 2\ to 3^ or more feet high ; leaf not reaching 

 to top of spike ; bracts somewhat small and rather acute, 

 subtending each flower, about one-third length of ovary. 



Flowers in rather a loose spike ; spike sometimes 16 inches 

 long, and comprising upwards of 50 flowers ; lower flowers 

 distant ; ovaries long and very attenuated. 



Sepals acute and rather narrow, about equal in length, 

 6 lines; lateral sepals distinct at extreme base and tips, 

 connate elsewhere ; dorsal sepal reflexed in mature flower. 



