33 



done me the honour of naming it Prasophyllum Tepperi. Its 

 stalk is thin, straight, leafless ; the flowers not numerous, very 

 small ; the tuhers large, globular. It grows under clumps of 

 mallee, and appears common to the tertiary and primary clays. 

 It is rare, and blooms in April. 



Plagianthus Berthce has hitherto only been found between 

 King George's Sound and the Australian Bight, and there it is 

 rare, as Baron F. v. Mueller informed me. It occurs about 

 four miles west of Ardrossan on the south side of the Maitland 

 road for a distance of about two miles pretty plentifully, in 

 company of Mriostemon lepidotus and Halgania lavandidacea. 

 Helipterwn heterantlmm had also hitherto been known from 

 W. Australia only ; it is a small plant and of rare occurrence. 

 Thysanoius exasperatus and PterostyUs barbata were only known 

 from one spot each in South Australia, the former from the 

 Flinders Range, the latter from near Mount Lofty ; both 

 grow here in the scrub, near Yorke Valley, but scantily. 

 Sivainsona laxa, R. Br., on the contrary, is an example of a 

 plant hitherto not known to occur so far westward. It is a 

 pretty plant, and has only been seen in the limestone gorge 

 formed by Rogue's G-ully in the Muloowurtie hills. Other 

 plants, the localities of which are mentioned as new by Baron 

 F. v. Mueller, are Dodonoea hexandra, Melaleuca acuminata, 

 Goodenia albiflora, at Kalkabury ; Hibiscus Wrayce, at 

 Kilkerran ; Daviesia genistifolia, low ground on the Maitland 

 road ; Hydrocotyle capillaris, Didiscus cyanopetalus, Minuria 

 sucedifolia (the last three small herbs), and Poa lepida, a small 

 but pretty grass and rather rare. Templetonia sulcata is, 

 besides, remarkable for its leafless, flattened, brittle, light 

 green branches. It occurs only on rich clay soil. 



Of naturalised weeds 33 are enumerated as observed and 

 collected. Some of them are happily of rare occurrence as 

 yet ; for example, Xanthium spinosum, the Bathurst burr, and 

 the common Scotch thistle, Onopordon Acantliium. Others form 

 good food for cattle, as Medicago denticulata (wild clover), and 

 Polygonum aviculare. In respect of a few I feel inclined to 

 consider them rather as cosmopolitan vagrants than as intro- 

 duced forms, having known them 30 years ago as plentiful as 

 now among the true native flora. That they have become more 

 conspicuous I think is greatly owing to the suppression of many 

 native forms through the browsing of cattle, the hardier plants 

 taking the place of the more delicate. The following are 

 adverted to, viz., SoncTms oleracetis, S. asper, Hypochoer is glabra, 

 and Geranium cicutarium among herbs ; and Festuca bromoides, 

 the silver grass, among Gramine». Orobanche cernua I have 

 only met once, growing by the side of the road, Kilkerran, on 

 decaying vegetable debris and sandy soil. It is a small plant 



