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NOTES ON INDONESIAN FRESHWATER ALGAE III*NEW VARIETIES OF SOME LITTLE-KNOWN STAURASTRA (DESMIDIACEAE) ARTHUR M. SCOTT; G. W. PRESCOTT
Reinwardtia Vol. 4 No. 3 (1958)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

Described and figured are Staurastrum freemanii West & West and var. triquetrum West & West, with two new varieties, var. nudiceps and var. evolutum; also three new i'ormae, var. nudiceps fa. biradiatum, var. triquetrum fa. trispinatum, and var. evolutum fa. trispinatuin. In St. salterns Josh, the specific form was not found, but two new varieties are named, var. polycharax and var. sumatranum, with a fa. divergens of the latter; also two new formae of the species, St. saltans fa. kalimantanum and fa. javanicum. In St. subsaltans West & West, var. indonesianum and fa. diver gens are named as new. Correction. Because of pre-emption the name Euastrum latwm sp. nov. Krieg. & Scott (1957) is changed to E. neolatum Krieg. & Scott.
NOTES ON INDONESIAN FRESHWATER ALGAE - IV. Concerning Euastrum moebii (Borge) Scott & Prescott comb. nov. and Euastrum turgidum Wallich. ARTHUR M. SCOTT; GERALD W. PRESCOTT
Reinwardtia Vol. 5 No. 3 (1960)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

The desmid presently known as Mierasterias moebii (Borge) West & West is transferred back to the genus Euastrum where it was originally placed by its discoverer, together with its several varieties, for reasons that are discussed in detail. There are described one new variety, var. diplocanthylum from Australia, and one new forma, var. tetrachastriforme fa. latum from Borneo. New illustrations are given for Euastrum, turgidum Wall., and criteria are suggested for differentiating this plant from the closely similar E. moebii.