680 CXLV. LYCOPODIACEX. | Azolla. 
branches, each plant under 1 in. iin but ees — in large 
masses on the surface of the water, emitting numerous rootlets, at first 
entire and sometimes dilated and flat, the older ones plogaatiy feathery. 
Larger spore-cases when full grown globular, reddish, nearly 1 line 
diameter, the smaller ones oblong, about 2 line long, "with usually 4 
corpuscles at the base of the macrospore.—Griff. in Calcutta Journ. 
ah Hist. v. 257, t. 15 to 17; Metten. i in Linnea, xx. 273, t. 3. 
- S. Wales, Fraser; Paterson’s and oe Rivers, R. Brown, 
Victoria Goulburn River, F, Mueller 
Dispersed over tropical Asia and Africa. 
2. A. rubra, R, Br. Prod. 167.—Individual plants smaller more 
compact and brosdàr than in A. pinnata, ur branches d with fewer 
closely imbricate but lx leaves, x oots all simple in Brown's 
as well as our own specimens. Larg v apése cases pos about 4 
four diameter, the smaller oblong ones Bey i litte, the atonotare 
otherwise the same asin 4. pinnata. — Hook. t . Fl. D Aena ii. 158. 
Queensland. Brisbane mns. s sag a 
N. S. Wales. Paterson r, A. Bro 
Victoria. Wendu vea Rideriads ; Me boum, Adamson; Avon River, F. 
Mueller, 
asmania. Floating on marshes and ponds, Gunn. 
S. Australia. Murray River, Behr. 
Alsoin New Zealand. 
6. eae Bernh. 
S 
intermixed with leafy bracts Mri On a short petiole. 
cases usually two together, ned into a capsule-like sorus, Been 
i versely oblong, flattened, 2-celled a 
didymous or 2-lobed, opening Jocabeidiliy 1 in 2 valves. Spores minute, 
uniform. 
m 
i Soa 
Et. 
2 
© 
S 
st 
© 
= 
x 
S 
Q 
m 
-et 
The genus is limited to a single species found also in New Zealand and the Pacific 
. T. tannensis, Bernh. in Schrad. Journ. 1800, ii. 131, t. 2, f. 5. 
tems from a creeping slender rootstock sending o or pendulous, 6 
produ at o 
rather shorter than the leaves and occasion ally replaci bu them in the 
upper part of the stem, deeply divided into 2 Shine like the ve. 
