362 ; ADDITIONS, CORRECTIONS, ETC. 
(Page 115.) Epilobium. 
Mueller considers that all the Australian species are referable to one; Archer that E glabellum, Forst., is 
referable to E. tetragonum, L, 
(Page 119.) Haloragis pinnatifida, A. Gray ;—referred by Sonder (Linneea, xii. p. 231) to Brongniart's 
H. heterophylla. Strathallan, near the Jordan, Oldfield. 
(Page 120.) Haloragis Gunnii, Hook. fil. 
This should bear the name of H. teucrioides, Schlecht. ; it is also H. elata, Sonder, in Linnza, xii. 230. It is 
further also a native of Victoria, as is H. depressa, Walp. Archer considers that this, H. tetragyna, Lab., and 
H. depressa, Hook. fil., may possibly all prove to be varieties of one species. 
(Page 122.) Myriophyllum variefolium, Hook. fiL, is referred by Sonder to M. verticillatum, L. 
(Linnza, xii. 233.) 
(Page 124.) Add, as a doubtful member of the order, — 
P Gen. V. CERATOPH YLLUM, ZL. 
Flores monoici. Perianthium axillare, sessile, multifidum. ¢ Anthere plurimee, 2-loculares, inde- 
hiscentes. 9 Ovarium 1, sessile, 1-loculare. Ovudum 1, pendulum, orthotropum. Stylus terminalis, 
apice hinc stigmatosus. Nue coriacea, sepissime basi bi-aculeata, stylo apiculata. Semen pendulum. 
Embryo exalbuminosus ; cotyledonibus 4, verticillatis ; plumula polyphylla ; radicula brevissima.—Herbe 
demerse ; foliis vertieillatis, rigidulis, di-trichotome multifidis. 
A genus of submerged water-plants, found in many temperate and tropical parts of the globe. Stems 6-10 inches 
long. Leaves whorled, slender or almost capillary, divided into more or less elongated lacinise, sometimes remiotely 
toothed. Flowers very rarely produced (I have seen none in Tasmanian specimens), small, axillary, sessile, mon- 
cecious. Perianth of several small leaves, enclosing in the male flower many sessile anthers, and in the female 
a solitary, one-celled, one-seeded ovary, with a simple style. Fruit a small coriaceous nut, with usually two spines 
diverging downwards from towards the base below the middle, and a persistent, terminal style. (Name from 
xepas, a horn, and dvAXov, a leaf, in allusion to the foliage.) 
1. Ceratophyllum demersum (Linn. ; Engl. Bot. t. 947). 
Has. Still water, Launceston, Lawrence, 
Disrris. South-eastern and tropical Australia, Asia, Africa, and America, generally. 
(Page 133.) Eucalyptus Risdoni, Hook. fil. 
Dr. Mueller reduces this to E. cordata, an opinion I cannot coincide in. 
(Page 139.) Leptospermum Zanigerum, Sm., and Z. Jlavescens, Sm., are considered varieties of one 
by Archer; also Z. myrtifolium, Sieb., and ZL. rupestre, Hook. fil. 
(Page 141.) Bieckia 2%ymifolia, Hook. fil., is regarded by Archer as a variety of B. diffusa, Sieb. 
(Page 148.) Tetragonia implexieoma, Hook. fil. 
I have good fruit of this from Archer and Mueller.—The styles vary from 2-3. The flowers are hermaphrodite, 
and smell of hawthorn. The Zerries spherical and red.—F. Mueller. 
(Page 149.) Bauera microphylla, Sieb. 
Mueller considers this to be quite a distinct species. 
(Page 152.) Hydrocotyle Zasmanica, Hook. fil., is, according to Archer, a variety of H. Air/a, Br. 
(Page 153. Hydrocotyle pterocarpa, Muell. Add to habitat—Southport, Oldfield. 
