Ordo FJ. Confervaceac. 
Zoospermeae J. 4gardh Novit. Flor. 9. Alg. medit. 1. 
ercl. generibus Siphonearum plurib. Zoospermeae et Syn- 
sporeae Decaisn, in Nouv. Annal. sc. nat. XVII. 305. 
Cellulae solitariae v, plures, globosae, el- 
lipticae, cylindricae v. tubuliformes, interdum 
varie ramosae, nunc in substrato gelatinoso 
sparsae v. inordinatim aggregatae, v. regula- 
riter unica serie superpositae, frondem articu- 
| Jatam formantes; nunc multiplici serie juxtapo- 
sitae, stratum effusum constituentes, rarissime 
reticulatim coalitae. Incrementuz per cellula- 
rum multiplicationem merismaticam, ramifica- 
lio ex earundem elongatione laterali, septo tan- 
dem discreta. Propagatio per Sporidia (cellu- 
las endogenas v. substantiam gelatinosam, tan- 
dem in cellulas formandam) intra quamvis cel- 
lulam, solitarie v. numero definito v. indefinito 
nascentia, ex endochromate unius v. plurium 
cellularum, nonnunquam diversorum individuo- 
rum copulatione formata, cellulae matricis hiatu 
v. resorptione effusa. — Algae saepissime viri- 
des, rarius olivaceae, violaceae v. rubrae, nunc 
aquam dulcem, nunc salsam incolentes, quae- 
dam in utroque fluido aeque provenientes; non- 
nullae limicolae, aliae libere natantes, plurimae 
affixae, rupicolae v, parasitae. 
SUBORDO X. PALMELLEAE. Cellu- 
lae subglobosae v. ellipticae, liberae et plus 
sinus discretae, v. substrato mucoso in fron- 
. dem collectae. 
TERIEIBUS EF, PROTOCOCCOIDEAE.Su5- 
stratum mucosum obsoletum. 
1. Proetococeus AG. Cellulae globosae, li- 
. berae, coloratae, inanes, in stratum pulvereum aggre- 
 gatae. — in aquis stagnantibus et ad terram udam. 
Protococcus 4gardh in N. A4. N. C. XII. 737. Küizing in 
Linnaea VIII. 335. excl. sp. plurim. fact. Meneghini Nost. 
10. Sphaerella Sommerfeldt in Magaz. for nat. JFedensk, 
1824. IV. 249. Coccophysium Link in A4bhandl. Berl. Aca. 
dem, 1824, p. 184, Handb. III. 477. Globulinae et Proto- 
sphaeriae sp. Turpin, 
1. Proto Hützing in Linnaea VIII. 365. 
L32 TE Menegh. Nost, f. 1. f. 1, — In superficie 
aquarum stagnantium. 
2. Protococcus caeruleus Kützing in Liínnaea VIII. 366, 
Menegh. Nost.. 12. £, 1. f. 2. — Ad terram udam. 
3. Protococcus persicinus Diesing Diss. inedit, Menegh. 
Nost. 13, £, 1. f. 3, — In thermís caeciis et euganeis. 
4. Protococcus roseus Menegh. Nost. 14. t. 1. f. 4, — Ad 
calcem udam murorum. 
«hn 
9. Protococeus kermesinus gard Ic, Alg. europ, t, 21, 
— Ad nives alpium, 
9. íaematococeus 4G. Cellulae globosae, 
liberae, granulis sphaericis, coloratis farctae, in stra- 
tum pulvereum aggregatae. — Ad terram udam., 
Haematococcus -4gardh Ic. Alg. europ. n. 22. Menegh. 
Nost, 18. Gloiococcus Shuttleworth tn Biblioth. univ, Ge- 
név, 1840, Febr. p. 405. 
1. Haematococcus Cordae MenegA. IVost. 20, t. 1, f. 5. — 
Ad rupes madidas. 
2.Haematococcus Orsinii Menzegh. Nost. 22, t, 2. f. 1, — 
Ad terram udam. 1 
3. Haematococcus Grevillii 4gardA Ic. A4lg. europ. t. 93.— 
Ad rupes calcareas Scotiae, 
4. Haematococeus Noltii 4gardA Ic. Alg, europ. t. 22, — 
In stagnis turfosis. 
3.Chiorococcum GHREVF. Cellulae globo- 
sae, liberae, hyalinae, materiem viridem, tandem in 
granula fatiscentem includeutes, in acervulos irregu-- 
lares agzregatae.— 4d terram udam et. in aquis sta-.- 
gnantibus. 
Chlorococcum Greville Crypt. scot. n. 326. Menegh. 
ost, 2á. Globulinae et Protosphaeriae sp. Turpin. 
1. Chlorococeum Agardhii Menegh. XNost. 28. t. 2. f. ?. 
Protococcus viridis 4gardh Sjst. 13. — Ad terram udam. 
2. Chlorococeum infusionum Menegh. Nost. 27. t, 2, £4; 
Lepraria infusionum ScArank in dct, 4cadem, Monac. 
1811. p. 12. — |n aquis staguantibus. 
3. Chlorococcum Monas AMenegh. Nost. 28, t. 3. f. 1. — 
AÀd truncos emortuos. 
4. Chlorococcum murorum Greville Crypt. scot, t£, 325. — 
Ad saxa uda. 
5. Chlorococcum  Montagnei Menegh. Nost. 30. — ln insula 
Cuba. : 
4.P'Ieurococeus J/ENEGH. Cellulae ma- 
lrices subglobosae, solitariae v. in stratum crustaefor- 
me aggregatae, hyalinae, cellulas quaternas, granu- 
lis farctas includentes. — 4n aquis stagmnantibus | et 
ad terram udam. " 
Pleurocoecus Menegh. Nost. 30. 
1. Pleurococcus thermalis Menegh. XNost. 32. t. 3, f. 2. — 
In thermis euganeis. 
2.Pleurocoecus membraninus Menegh. Nost, 34. t, 4,5 5 
et 2, — |n thermis euganeis, 
3.Pleurococcus cohaerens Brebiss. ez Menegh, Nost. 36. 
t. 4, f. 3, — Ad muscos udos. 
^4, Pleurococcus Julianus Menegh. Jost. 36. t. 4. f. 4. c 
In thermis Italiae. 
5. Pleurocoecus angulosus Menegh. Nost. 37. 
Ad Confervas. : 
6. Pleurococcus vulgaris Menegh. Nost. 38, z. 5. f. 1. Chlo- 
rococceum vulgare Greville Crjpt, scot. t. 268. Ad - 
€orticem arborum udum. ; 
7. Pleurococeus glomeratus Menegh, Nost, 40. 
In fontibus Italiae. 
8, Pleurococcus einnamomeus Menegh. Nost. 42, t. 5, f.3.— 
Ad terram udam. 
9. Pleurococcus Magma Menegh. Nost. 43, — Ad rupes hu- 
mentes, 
5$. Stereococeus KUTZ. Cellulae in fron- 
dem globosam, siccam, durissimam azgregatae.— Sa- 
xicola. 
& 4; X. 8. — 
t. 9. yf 2.— 
Stereococcus Kützing in Linnaea VIII. 379. 
1.Stereocoecus viridis KZfzing I1. c. — Ad saxa rivu- 
lorum. 
TRIBUSIEX. COCCOCHLOREAE. Sub- 
stratum mucosum manifestum. - 
6. Palmel!a LFNGB, Cellulae in substrato 
mucoso, indefinito hyalinae, succo colorato, tandem 
iu novae frondis substratum effuso foetae.— 4d ter- - 
ram humidam. 
