and their Habitats. 15 



No. 27 — Umbellifere^e (Morison). 

 Genera — Hydroctyle, Didiscus, and Trachymene. 



1. H. laxiflora (Towns). — Is common on pasture lands 



around Omeo ; metamorphic soils ; 2000 to 3000 



feet. 

 1. D. homilis (D. C). — On the detritus of coarse 



gneissose soils along Victoria River, at altitude of 



3500 feet. 

 1. T. billierdierii (F. v. M.). — On sandy soils at head of 



Livingstone Creek ; 3700 feet ; but more abundant 



on conglomerate detritus along the valley of Went- 



worth Eiver ; 3000 feet. 



III.— SYNPETALEiE-PEKIGYNiE. 



No. 28 — Santalace^: (R. Br.). 

 Genera — Leptomoria, Omphacomeria, Exocarpus. 



1. L. aphylla (R. Br.). — Common on the open northern 



slopes of Mount Livingstone ; 3000 feet; the fruit 

 is succulent and acrid. 



2. O. acerba (A. de C). — Confined to the Dividing Range, 



near Mount Sisters ; quartz porphyry formation; at 

 elevations of 3000 to 4000 feet. 



1. E. cupressiformis (Labill), "cherry-tree." — Is sparsely 



distributed on undulating ranges near Omeo Plains; 

 more abundant south of Dividing Range. 



2. E. stricta (R. Br.). — Common all round Omeo, along 



eastern slopes of Livingstone Creek, up to 3800 

 feet ; metamorphosed Silurian soils. 



3. E. humifusa (R. Br.). — A prostrate bush, abundant at 



the higher elevations margining Bogong High 

 Plains ; granitic and Silurian formation ; also on 

 the basaltic plateaux, up to G000 feet. 



4. E. nana (Hook.). — Prostrate shrub, at head of Ben- 



ambra Creek, and at Mt. Cobberas ; 6015 feet, trap 

 form. 



No. 29 — Pboteace^e (A. L. de J.). 



Sub-order No. 1 — Numentace^e. 



1. Persoonia juniperina. — Is abundant along the valley 

 of the Livingstone Creek, on mica schist formation ; 

 up to 4000 feet. 



