9348

• UCREFRP Catalog Number: 9348
• Author: Crane, H. S.
• Title: Fishery Investigations of the Glen Canyon and Flaming Gorge Impoundment Areas.
• USFW Year: 1959.
• USFW - Doc Type: \
• Copyright Material: NO

-2~_
Plant Life
Due to the tremendously irregular dissection of the topography of the Glen
Canyon area, the usual orderly arrangement of flora is upset and is found to occur
instead in discontinuous ecological areas, often v~th relatively sharp boundaries.
As would be expected, the heaviest plant cover is found to occur along the
river flood plain and at the mouths of some of the tributaries where extremely
heavy growths of willows and Tamirix predominate. In those side canyons which drain
large areas, the plant covering is usually sparse, due to the scouring action of
the streams during flooding. Side canyons which drain small areas and have a perm-
anent spring or seep-fed stream usually support a large plant population. The
country above the river and side canyons is typically grid with little plant cover.
Algae Collected in Glen Car~yon
Dr. Seville Flowers, Professor of Botany, 'University of Utah, identified-the
algae which was collected from the Glen Canyon area. Casual observations suggests
the caanmon species of Spiro~yra, Zy~nema and Cladophora as being the dominant fila-
mentous green algae and this is borne out by the collections. The species of algae
found in the Glen Canyon area are as follows:
CHLOROPHY'TA - Green algae
C,4lindrocapsa gemninella Woole
Sti~ioclonium attenuatum (Hexen) Collins
Chaetophora ele ans (Roth) Ag.
Cladophora fracta Dillw.) Ktz.
Cladophora ~lomerata (L.) Ktz.
Cladophora kuetzin~iana Grun.
Oedo~onium Spp•
Pediastrum inter,?rum Naegeli
Scenedesmus biiu~a (Turpin) Lager.
Scenedesmus ~uadricauda (Turpin) Breb.
Anlastrodesmus falcatus (Gorda) Ra1fs.
Ankistrodesmus spiralis (Turner) Lemmer.
Kirchneriella lunaris var. dianae Bohlin
Z4gnema cruciatum ~Taucher} A,Co Ag.
Zy~nema insignia (Hass) Ktz.
Zy~nema spy.
Spiro~yra Deminina (Muell.) Ktz.
Spiro~sra ~ortic~lis (Mue1T.)Gleve
Spiro~vra silvicola E.Ma Britt
Spiro~yra guadrata (Hass.) Petit
Spiro~vra webers Ktz.
Spiro~vra s
Mou~eotia capucina (Bury) Ag.
MouQeotia ~enuflexa (Dillw.)A.C.Ag.
Mou~eotia parvul~, Hass
Closterium acero~um (Schrank)Ehrenb.
Closterium turbini Breb.
Closterium ~.
CHRYSOPHITA - Yellov~green algae
Melosira spp. fragments
Tabellaria spp,
Synedra ulna (1Vitz.) Ehrenb.
Fra~ilaria spp..
Astronelia formosa Hass.
Meridion circulare Hass.
Eunotia spp.
Navicula spp.
Pinnularia viridis (Nitz.) Ehrenb.
Masto~loea smithii var. Grun.
Gomphonema constrictum Chrenb.
Gomphonems, angustatum var.(Ktz.)Grun.
Gomphonema spp.
Cymbella spp.