69 
. 9.—Tolypothrix oe ou Kiitz. 
. 10-17.— Hapa 8 eat milus, Kirchn. 
Figs. 10, 11. The evolution rof a branch in a — state. 
12, 13. abode g of the thallus, with branches 
ig. 14.--Portion of the thallus, with . hete rocyst. 
. 15-19.—Gleotrichia natans, 
15.—The basal portion of a filament : h= heterocyst, sp=spore, s=sheath. 
1¢6.—Th gens per end of a filam 
. 17, 18.— Young narageo oak wath spores in evolution. 
19.—Older filame _ —o spores, ; 
é Se ea srt hig 
| Fig. 21.—Anabeena Flos-aque. w, Bréb. "¢ ?) 
Fig. 22.—C ‘ere pina. licheni iforme, Kiitz. 
: Plate XII. 
Big 1.—Oscillaria princeps, ota 
ig. 2.—Oscillaria sancta, Kiit 
. 3.—-Lyngbya rh (Kiitz), Gom. 
Fedele 
Figs. 7, 8, 9.—Microcoleus peludos eae Gom. 
Fig. 7.—Thallus - 
Fig. 9 _—Sheath, with several filaments. 
Fig. 10.— opedium piste ae Rabentz. Thallus. 
Fig. 11.—Merismopedium convolutum. A little portion of the thallus; the cells 
nnin eal. 
Fig. 12.—Zygogonium tenuissimum, Grun. 
Plate XIII. 
Fig. 1.—Merismopedia revolutiva, n. s ; 
Fig. deca calyculus, Ha otha Dise' with very young spores, to the right a 
ag. 
me stipe, m: 
he 2a, tlle: pe erence in the text.) 
re - —(See —— in ~ text.) . 
Cy e reference be the text. 
Fig. 3. a pper portion } of Acctabularia calyculus, Harv., before 
the fiematiods “ob the stipe, mag. 25. . 
: oe : Plate XIV. 
 *Fig.2 2h sam, ig. eee 
Rig. 3.—Zeto mes sor Sond, - Form with cylindrical eee) sporangia, 
«RB on form mag. 40, 
8: B.—Eetocarpus indicus Sond. Smaller form, with more conical sporangia, 
Fig. 6—Ketocam 
—Lctocarpus dnpiiebizsalus ., Var. vitiensis, mag. 50. 
late XV. 
1.—The same form, with ide sporangium. 
e 5 Specdlrt siliow " losu mgr a r <A rats 1 
Polysiphonia mollis, yas  Dyat tocarp, ma 
E 5 oro corymbosum, Lyngb. poe Se mag. 60, 
Dh 1 Plate XVI. 
a Tig. —Lallthamnion ie aera Lyngb. With tetrasporangia, mag. 60. 
, : fe 4.—Callithamnion ovuligerum, ving 89 Tetrasporangiay mag. 80. 
5 > SEs — sg — Te giana ag. 40. 
1g. 6.—The sam. mag. 38 
lige ZVit. 
esame, Antheridia, mag. 40. 
Fig. 1.—The 
Eelam ovuligerum, n. sp. Thallus, with a young cystocarp, mag. sa 
th very young cystocarp, mag. 
SU Coen he Sana NS ; . ; 
By Authority : Epmunp Grecory, Government Printer, Brisbane. 
