IIab. Common in boggy places on Ibe mountains.— (v. v.)
D is t k ib . Alps of Victoria, New Zealand, Lord Auckland’s Group, etc. ; alps of South America to
Fuegia.
Stems creeping, stout, rooting, often 2 feet long, sending out ilatteued, flabellately-dividcd, compressed branches.
Leaves of two kinds ; the larger bifarious, decurrent, falcate, ovate-lanceolate, acute or acuminate, laterally flattened,
very coriaceous ; smaller on the under side of the branches only, more numerous, subulate, appressed to the stem.
Spikes 1-24 inches long, cylindrical, solitary or geminate, on long or short terminal peduncles, whicli are often 8
inches long, and covered with imbricate, subulate leaves. Scales somewhat sexfariously disposed, ovate, with ratlier
broad recurved points and toothed margins.
Geu. IV. SELAGINELLA, Beauv.
Capsula biformes, sessiles, uniloculares; aliæ reniformes, rima longitudinali dehiscentes, bivalves, sporis
minutissimis trigonis linca tricruri notatis replete ; aliæ 2-3-lobæ, 2-3-valves, corpusculis 1 -6 farcte.—
Frondes /lerbacea, complanaiee, distiche v. bi/ariam. xamosee; folia qaadrifaiia, lateralia paiiila verticalia,
antica etposiica sape stipulreformia, cauli appressa; spicis terminalibus, 4-fariis.
1. S e la g in e lla u lig in o s a (Spring, Monog. Lycop. ii. 6 0); caule erecto, ramis erecto-patentibus
bifariis suboppositis, foliis parvis confertis 4-fariis uniformibus patentibus ovatis acuminatis integerrimis
subcarinatis basi subtortis, amentis 4-angularibus sessilibus.— Lycopodium uliginosnm, Lab. Fl. Nov. Holl.
ii. 104. /. 2 5 1 ./. 2 ; Br. Prodr. 165; Gaxid. in Freyc. Voy. Bot. 284. [Gunn, 51, 1559.)
Hab. Probably common in marshy places: Hobarton, Georgetown, etc.— [v.v.)
D is t r ib . New South Wales and Victoria.
S. uliginosa is a small, distichously or bifariously branched, slender plant, 2 ^ inches high, with smaU quadrifarious
leaves, those on the upper and under face of the branches appressed, the lateral spreading, all ovate-acuminate,
quite entire. Spikes sessile at the apices of the branches, tetragouous.—A very lai'ge tropical genus of
•a, of which no species has hitherto been found in New Zealand, and veiy few in Australia.
Gen. V. ISO E T E S ,./.
1. I s o e te s , sp.? (Gkkk, 1563.)
H a b . At the bottom of alpine lakes; abundant.
My specimens, being in an immature state and barren, are not capable of satisfactory determination. They
may belong to I. lacustris of Europe, a plant of wide distribution, but the leaves are more rigid, short, and blunt.
—A perennial submerged plaut, gro'ving in dense tufts. Leaves narrow-linear or subulate, cellular, 2-6 inches
long, enlarged at the base where the capsules are inserted. Capsules usually of two kinds, those of the outer leaves
with large grains cohering originally in fours, those of the inner filled with very minute spores.
N at. Oe d . III. MAHSILEACEaE, Br.
Gen. I. AZOLLA, Lam.
1. A z o lla r u b r a (Br. Prodr. 167). [Gunn, 438.)
H a b . Eloating on the surface of marshes and ponds : Circular Head, etc.— [v. v.)
D is t r ib . A native of Australia, Tasmania, New Zealand, South America, and probably many other
parts of the world.
A pretty, small water-plant, of a vinous-red or red-puiple coloui', subtriangular in outline, 1-2 inches long,
easOy recognized by its floating liabit, closely distichously-branched stem, and minute imbricating leave!
fructification forms small globular masses on the under smfaee of the frond.
Gen. II . PILULARIA, L.
1. P ilu l a r ia g lo b u lif e ra (Linn. Sp. P\.).— F!ngl. Bot. t. 521. [Gunn, 1561.)
H a b . Marshy ground near Peuquite, Gunn, and probably common elsewhere, but easily overlooked.
D is t r ib . Swau Eiver, Europe, North Africa. (A native of England.)
Dr. Valentine, who has examined this plaut in Tasmania, says that it might be distinguished from the European
by the curved pedicels and pendulous capsules, but I find precisely similar states in English specimens. J n Swan
River specimens of P. globulifera the capsules are placed as in the European plant.—Rhizome slendei', creeping,
often submerged, rooting at the nodes. Leaves capillary, 2-4 inches high, bright-green. Capsules like pills,
sessile or shortly peduncled, 2 lines in diameter, covered ivith liairs, four-celled, four-valved at the top, containing
spores of two sorts, one large, the other very minute.
N at. O r d , IV . C H A R A C EÆ .
The Characea are all fresh-water plants (very rarely inhabiting brackisli water), often forming densely
matted patches. They are leafless, with whoried branches, and minute axiDary fructification. There are
probably very many Tasmanian species, but they are difficult of investigation. The following enumeration
of the known Tasmanian species is by Professor Alexander Braun, of Berlin, who is preparing a work on
the Order ; the descriptions of several have not, I believe, been published. In an able paper on the Australian
and Antarctic Chara, by Professor A. Braun, of Berlin, in Hooker’s ‘London Journal of Botany,’
1 8 4 9 , that' learned author remarks that in Australia the greatest number of species are dioecious, whilst in
Europe the contrary is the case; as also that all the true Chara of Australia belong to the division Haplo-
stephanea, while iu other parts of the world tlie division Biplostephianea prevails, which latter seems to
be entirely absent in Australia.
Gen. I. CHAEA, L .
1. Chara gymnopitys (A. Braun).
H a b . Derwent Eiver, rivulets at Launceston, etc. [Gunn, 1 5 7 3 , 1 5 6 8 , 1 5 6 8 ?)
2. Chara myriophylla (E. Mueller).
H ab. Ponds at Georgetown ; shallow muddy water. Lake St. Clair. [Gunn, 1 5 6 8 , 1 5 7 2 . )
3 . Chara au stralis (Br. Prodr. 3 4 6 ) .—Braun, in Linnaa, xvii. 1 1 7 ; Plant. Preiss. ii. 1 4 8 ;
Hook. Lond. Joum. Bot. i. 2 0 1 .
H a b . South Esk Eiver, near Launceston. [Gunn, 1 5 6 5 , 10 0 0 . )
D i s t u ib . Swan Eiver, Victoria, New South Wales, New Zealand.
4 . Chara lep to p ity s (A. Braun).
H ab. Mixed with Triglochin; Georgetown, near the sea, in places dry in summer. [Gunn, 1 5 6 8 ,
15 6 9 . )
5 . Chara H o o k e r i (A. Braun, in Hook. Lond. Journ. Bot. i. 2 0 2 ) .— (P. microphylla, F. Mue ll)
H a b . South Esk Eivcr, n eat Perth. (G ?i« « , 1 0 0 1 .)
6 . Chara mollusca (A. Braun).
H a b . Lake St. Clair; abundant. [Gunn, 1 5 7 0 , 1 5 7 1 . )