also been noted between Raoulia and its closely allied genera Leucogenes and Ewartia, the former on Mt. Fishtail, Mt. Richmond, and Mt. Schiza, and the latter on Mt. Gladstone.

Both on Mt. B. J. and on Mt. Riley Olearia Forsteri hybridises with O. avicenniaefolia, while it is possible that a plant answering to the description of O. Haastii may be Olearia Forsteri X O. cymbifolia, both of which species were prevalent in the neighbourhood. It is noteworthy that O. Haastii has hitherto been reported in Marl-borough from only one other locality, Prof. A. Wall (1927, p. 253) having obtained it from the Dillon River, where it apparently is scarce. On Mt. B. J. the writer observed one plant only.

Dr. H. H. Allan, of the Plant Research Station, has also drawn the attention of the writer to the presence of hybrid material amongst specimens of Poa and Danthonia submitted to him by the writer for identification.

Hybrids new to the New Zealand flora are:—

The former of these two is well illustrated at the summit of Strachan Peak, where Mr. J. H. Hadfield first observed trees obviously combining characters distinctive of these species, both of which are common in the neighbourhood. I attribute two trees observed on Mt. Freeth, near Picton, to the same cross.

The presence of hybridism in the genus Haastia has not formerly been noted. A small swarm of individuals quite obviously hybrid in origin was observed on Blue Mt. near the source of the Waihopai River. At no time have I observed Haastia recurva in the Northeastern Botanical District, though it has been reported from Mt. Tapuaenuku and elsewhere, but always from localities where Haastia recurva var. Wallii and H. pulvinaris are present. The possibility of such plants labelled H. recurva being of hybrid origin is worthy of examination.

Among plants already known to cross, small swarms of Nothopanax simplex X N. anomalum var. microphyllum occur on Mt. Robertson in the S.N. District and at Roto-iti in the N.W. District, while on Mt. B. J. there are numerous hybrid individuals of Olearia Forsteri X O. coriacea. Numerous swarms of Myrtus bullata X M. obcordata occur in the Pelorus and Rai districts.