Johannes Max Proskauer

German-born american bryologist (1923-1970).

Johannes Max Proskauer (December 5, 1923 – December 20, 1970) was born in Göttingen, Germany. He travelled to England via a Kindertransport. His mother died in 1943 and his father was murdered in Auschwitz. He attended the University of London, which awarded him a B.Sc. in 1944, a Ph.D. in 1947, and a D.Sc. in 1964, all in the field of botany. In 1948, Proskauer moved to Berkeley, California, where he became an instructor in botany at the University of California, Berkeley. He was awarded a Guggenheim Fellowship in 1954. He became a United States citizen in 1957. Professor Proskauer's thesis r

Abbreviations: Prosk.
Occupations: bryologist, botanist
Citizenships: United States, Germany
Languages: German
Dates: 1923-12-05T00:00:00Z – 1970-12-20T00:00:00Z
Birth place: Göttingen
Direct attributions: 12 plants, 0 fungi
Authorship mentions: 14 plants, 0 fungi

12 plants attributed, 2 plants contributed to14 plants:

Phaeoceros laevis (Smooth Hornwort) (L.) Prosk. 1951
plant species in the notothyladaceae family
Phaeoceros laevis, the smooth hornwort, is a species of hornwort of the genus Phaeoceros. It is commonly found in areas where moisture is plentiful, such as moist soils in fields, the banks of streams and rivers or inundated beneath the surface of the rivers. It grows to a maximum height of about 5 millimetres and the plants are monoecious; the sex organs are visible on the dorsal surface. The thallus is nearly flat on the upper surface. It is of dark green and somewhat lustrous color, devoid of intercellular spaces. Its capsule is commonly 6 inches (150 mm) to 18 inches (460 mm) in length.
Notothyladaceae Müll.Frib. ex Prosk. 1960
plant family in the order notothyladales
The Notothyladaceae is the only family of hornworts in the order Notothyladales.
Phaeoceros Prosk. 1951
plant genus in the notothyladaceae family
Phaeoceros is a genus of hornworts in the family Notothyladaceae. The genus is global in its distribution. Its name means 'yellow horn', and refers to the characteristic yellow spores that the plants produce in the horn-shaped sporophyte. The genus Phaeoceros was first recognized in 1951 by Johannes Max Proskauer. The type species is Phaeoceros laevis. The genus is distinguished by having yellow spores, different chloroplast structure, relatively less frilliness of the thallus when compared to Anthoceros, and a relative lack of internal cavities in Phaeoceros. The yellow color of the spores
Phaeoceros carolinianus (Carolina Hornwort) (Michx.) Prosk. 1951
plant species in the notothyladaceae family
Phaeoceros carolinianus is a species of hornwort—a group of simple, non-vascular plants—that is found worldwide in damp, shaded areas. It forms flat, dark green, rosette-shaped patches measuring 10–20 mm in diameter on bare soil and rock surfaces. The plant is characterised by its horn-like spore capsules, which grow 40–60 mm tall, and for producing both male and female reproductive structures on the same plant (a monoicous condition). These features, along with its unique spore structure, distinguish it from closely related species like P. laevis. First described by the French botanist André
Anthoceros neesii (Nees’ Hornwort) Prosk. 1957
endangered plant species in the anthocerotaceae family
Anthoceros neesii is a species of hornwort in the Anthocerotaceae family. It is found in Austria, the Czech Republic, Germany, and Poland. Its natural habitat is unknown; today it is only found growing in crop fields.
Fossombronia porphyrorhiza (Nees) Prosk. 1955
plant species in the fossombroniaceae family
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Treubia lacunosa (Colenso) Prosk. 1955
plant species in the treubiaceae family
Treubia lacunosa is a species of liverwort in the family Treubiaceae that is found across New Zealand in moist shady areas on logs or soil. The organism is relatively complex for a liverwort, and hosts endosymbiotic fungi which provide it with growth-inhibiting nutrients.
Phaeoceros tuberosus (Taylor) Prosk. 1963
plant species in the notothyladaceae family
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Cyathodium spruceanum Prosk. 1951
plant species in the cyathodiaceae family
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Phaeoceros propagulifer (Steph.) Prosk. 1951
plant species in the notothyladaceae family
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Anthoceros kajumas (K.I.Goebel) Prosk. 1951
plant species in the anthocerotaceae family
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Anthoceros dixitianus (Mahab.) Prosk. 1951
plant species in the anthocerotaceae family
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Phaeoceros himalayensis (Kashyap) Prosk. ex Bapna & G.G.Vyas 1962
plant species in the notothyladaceae family
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Dendroceros giganteus (Lehm. & Lindenb.) Prosk. ex Hamlin
plant species in the dendrocerotaceae family
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