r 
‚Unterer Oberer 
| Pisola- | Pisola- 
Roggia- Pane- 
Alpsee lattesee 
No. | see see 
1900 m | 1970 m | 1920 m | 2048 m 
üb.d.M. üb. a. Mm. üb.d.M. üb.d.M. 
| | | 
| | | 
| Algae. 
1 Dlothrix subtilis Ke. I: == — + _ 
2 | Schizochlamys gelatinosa A. Br. —_ 4 - = 
3, Raphidium polymorphum Fres. — = -H _ 
4 | Eremosphaera viridis D. By. — _ + _ 
5, Spirogyra communis KG. . = _ nu ._ 
6 | Closterium acerosum EHR. | = — 2 u 
zu cornu EHR. | — = — -r 
S  Pleurotaenium nodulosum D. By. IE -— ar — 
9 Staurastrum gracile RALFS en u 4 — 
10. x senarium (EHR.) RALFS var. 
alpinum RacıB. — - + 
11 aculeatum (EHR.) MENEGH. | + — — - 
12 fureigerum BREB. ul — B= 
13  Micrasterias papillifera (Kürz.) Raurs . | - En + 
14 | truncata BREB. II = + — 
15 Euastrum elegans K6. | — — + = 
16 | Cosmarium margaritiferum Men. | = - — + 
17 | # botrytis MEN. Int. _ E= + 
18  Arthrodesmus convergens EHR. . — — = + 
19  Xanthidium armatum BREB. | — — = == 
20 s aculeatum EHR. Ihe: -- = + 
91  Achnanthes exilis Kürz. I — + — 
22 Pr var. minutissima Brun. | — _- + — 
23 | Cocconeis placentula EHR. -— + + - 
324 | Gomphonema constrictum EHR. . _ + + — 
25 intricatum var. angustata 
(Kürz.) ve — - - 
26 | e dichotomum KÜrTz. .| — — _- 
27 | Epithemia argus Eur. var. alpestris 
| (W. Sm.) | — — + -- 
28 turgida EHR. | — + —_ -- 
29 | Himanthidium pectinale Kürz. . | — Se zu = 
30 | polyodon Brun. . I + — — + 
3l Amphora ovalis Kürz. | = == — + 
32 | Cymbella variabilis WARTUM. | — — ar Sr 
33 caespitosum Kürz. | SE al nz = 
34 gracilis Eur. & Kürz. I + r — -- 
35 helvetica W. SM. | = — = -E 
36  Nawicula laevissima Kütz. & GRÜN. - -- + — 
37 = crassinervis BREB. II, ze - + + 
38 | 5 elliptica Kütz. | — + — 
