Christian E.O. Jensen

Danish pharmacist and botanist.

Christian Erasmus Otterstrøm (Otterström) Jensen (1859–1941) was a Danish pharmacist and botanist, for decades a leading bryologist in Scandinavia. He studied botany and pharmaceutics at the University of Copenhagen and the Pharmaceutical College in Copenhagen. For the better part of his adult life, he ran a pharmacy in Hvalsø, Denmark, while devoting all available time to the study of mosses.

Abbreviations: C.E.O.Jensen
Occupations: pharmacist, bryologist, botanist
Citizenships: Kingdom of Denmark
Dates: 1859-06-11T00:00:00Z – 1941-10-04T00:00:00Z
Birth place: Groß-Quern
Direct attributions: 19 plants, 0 fungi
Authorship mentions: 29 plants, 0 fungi

19 plants attributed, 10 plants contributed to29 plants:

Sphagnum centrale (Central Peat Moss) C.E.O.Jensen 1896
plant species in the sphagnaceae family
Sphagnum centrale is a species of moss belonging to the family Sphagnaceae. It has cosmopolitan distribution. It is often found in cedar swamps and similar environs. It has a pale green color common to all the Sphagnum subgenus mosses but, unlike other common members of the subgenus like Sphagnum magellanicum, it will never be red and rarely brown.
Sphagnum angustifolium (Fine Bog-moss) (Russow) C.E.O.Jensen 1891
plant species in the sphagnaceae family
Sphagnum angustifolium, the fine bogmoss, is a species of peat moss with a Holarctic distribution. A member of the S. recurvum species complex within Sphagnum section Cuspidata, it is a relatively small, green to yellowish moss that grows in wet, moderately nutrient-rich mires, typically forming carpets or growing intermixed with other peat moss species. The species can be distinguished from its close relatives by having no more than four branches per fascicle and distinctive large pores on its hanging branch leaves, though identification becomes more challenging in southern populations where
Sphagnum balticum (Baltic Bog Moss) (Russow) C.E.O.Jensen 1890
plant species in the sphagnaceae family
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Campylium stellatum (Yellow Starry Fen Moss) (Hedw.) Lange & C.E.O.Jensen 1887
plant species in the amblystegiaceae family
Campylium stellatum is a species of moss belonging to the family Amblystegiaceae. It has cosmopolitan distribution.
Sphagnum majus (Olive Bog-moss) (Russow) C.E.O.Jensen 1890
plant species in the sphagnaceae family
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Seligeria oelandica (Irish Rock-bristle) C.E.O.Jensen & Medelius 1929
plant species in the seligeriaceae family
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Dicranum acutifolium (Sharp-leaved Broom Moss) (Lindb. & Arnell) C.E.O.Jensen 1937
plant species in the dicranaceae family
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Porella baueri (Schiffn.) C.E.O.Jensen 1915
plant species in the porellaceae family
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Coscinodon calyptratus (Steppe Mouse-moss) (Drumm.) C.E.O.Jensen 1857
plant species in the grimmiaceae family
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Coscinodon hartzii C.E.O.Jensen 1898
plant species in the grimmiaceae family
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Lescuraea patens (Patent Leskea Moss) (Lindb.) Arnell & C.E.O.Jensen 1910
plant species in the pseudoleskeaceae family
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Campylium zemliae (C.E.O.Jensen) C.E.O.Jensen 1887
plant species in the amblystegiaceae family
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Bryum pseudocastaneum C.E.O.Jensen 1937
plant species in the bryaceae family
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Racomitrium canescens var. latifolium (Wideleaf Racomitrium Moss) C.E.O.Jensen
plant variety in the grimmiaceae family
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Pterygoneurum ovatum f. incanum (Nees & Hornsch.) C.E.O.Jensen
plant form in the pottiaceae family
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Plagiothecium denticulatum f. undulatum (Swamp Silk-moss) (R.Ruthe ex Geh.) C.E.O.Jensen 1877
plant form in the plagiotheciaceae family
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Nardia kamtschatica Arnell & C.E.O.Jensen 1927
plant species in the gymnomitriaceae family
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Drepanium fastigiatum (Brid.) Lange & C.E.O.Jensen 1887
plant species in the amblystegiaceae family
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Andreaea rupestris ssp. papillosa (Lindb.) C.E.O.Jensen 1954
plant subspecies in the andreaeaceae family
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Lyellia aspera (Lyellia Moss) (I.Hagen & C.E.O.Jensen) Frye 1936
plant species in the polytrichaceae family
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Cynodontium suecicum (Arnell & C.E.O.Jensen) I.Hagen 1899
plant species in the rhabdoweisiaceae family
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Scapania obscura (Dark Earwort) (Arnell & C.E.O.Jensen) Schiffn. 1908
plant species in the scapaniaceae family
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Douinia (C.E.O.Jensen) H.Buch 1928
plant genus in the scapaniaceae family
Douinia is a genus of liverworts belonging to the family Scapaniaceae. The species of this genus are found in Eurasia and Northern America. The genus name of Douinia is in honour of Charles Isidore Douin (1858 – 1944), who was a French bryologist who was a native of Bouville, Eure-et-Loir. The genus was circumscribed by Christian Erasmus Otterstrøm Jensen in Commentat. Biol. Vol.3 (Issue 1) on page 13 in 1928.
Brachythecium groenlandicum (Greenland Brachythecium Moss) (C.E.O.Jensen) Schljakov
plant species in the brachytheciaceae family
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Warnstorfia fluitans var. falcata (Sanio ex Lange & C.E.O.Jensen) H.A.Crum & L.E.Anderson
plant variety in the calliergonaceae family
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Reboulia hemisphaerica var. turkestanica C.E.O.Jensen ex Herzog 1930
plant variety in the aytoniaceae family
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Ptychostomum vermigerum (Arnell & C.E.O.Jensen) J.R.Spence 2020
plant species in the bryaceae family
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Niphotrichum canescens ssp. latifolium (C.E.O.Jensen) Bedn.-Ochyra & Ochyra 2003
plant subspecies in the grimmiaceae family
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Cephaloziella hampeana var. sibirica C.E.O.Jensen ex Arnell 1917
plant variety in the cephaloziellaceae family
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