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All Journal REINWARDTIA Reinwardtia
R. E. HOLTTUM
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Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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FLORAE MALESIANAE PRAECURSORES XVI ON THE TAXONOMIC SUBDIVISION OF THE GLEICHENIACEAE, WITH DESCRIPTIONS OF NEW MALAYSIAN SPECIES AND VARIETIES R. E. HOLTTUM
REINWARDTIA Vol 4, No 2 (1957): vol.4 no.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.1957.1004

Abstract

A new subdivision is given of the fern family Gleicheniaceae. The genus Platyzoma R. Br is excluded from the family. The genus Stromatopteris from New Caledonia is arranged in a distinct subfamily. In the remainder of the family, subfamily Gleichenioideae, two genera are recognized, Gleichenia (with subgenera Diplopterygium, Gleichenia, and Mertensia) and Dicranopteris (with subgenera Acropterygium and Dicranopteris) . The problem of subdividing the family is discussed with reference to former treatments and to new data, and a conspectus of the new system, with synonymy and key to the genera and subgenera, is given. A number of new species, new varieties, and new combinations is made both in Gleichenia and Dicranopteris.
THE FERN-GENUS PLEOCNEMIA PRESL R. E. HOLTTUM
REINWARDTIA Vol 1, No 2 (1951): vol.1 no.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.1951.1056

Abstract

  1. The genus Pleocnemia Presl is redefined and differentiated from Tectaria Cav. and Arcypteris Underw., the latter genus being very closely related to Pleocnemia. 2. The configuration of the perispore proved to be of importance for the characterisation of the .species. In this regard three types are distinguished, perispore 1 forming crisped anastomosing wings, perispore consisting of many slender spines, and, an intermediate type, perispore forming many small separate wings.3. Tentatively 15 species are recognized. Of these, Pleocnemia winitii Holttum,P. acuminata Holttum, P. pleiotricha Holttum, P. presliana Holttum, P. dimidiolobata Holttum, P. tripinnata Holttum, and P. seranensis Holttum are described as new, aa well as one variety, P. conjugata var. elatior Holttum. 4.The following new combinations are made:P.hemiteliiformis (Racib.)Holttum (basinym:Pleocnemia leuzeana var. hemiteliaeformis Racib.),P.olivacea (Copel.)Holttum (basinym: Tectaria olivacea Copel.),P. kingii (Copel.) Holttum (basinym: Tectaria kingii Copel.), and P. chrysotricha (Bak.) Holttum (basinym: Nephrodium chrysotrichum Bak.). 5. Reductions to synonymy are: Pleocnemia javanica Presl to P. conjugata (Bl.) Presl, and Dictyopteris compitalis v. A. v. R. to P. hemiteliiformis (Racib.) Holtt
TREE-FERNS OF THE GENUS CYATHEA IN JAVA R. E. HOLTTUM
REINWARDTIA Vol 7, No 1 (1965): vol.7 no.1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.1965.965

Abstract

A full taxonomic study of the genus Cyathea has recently been published in Flora Malesiana (Ser. II, vol. 1, part 2, Dec. 1963). In that work the genus is construed in a broad sense, to include Alsophila and Hemitelia (also Gymnosphaera and Schizocaena of Copeland's Genera Filicum), the total number of species being 191, and a new subdivision of this comprehensive genus is proposed. The keys in Flora Malesiana, dealing with such a large number of species, are complex, and not very easy to use for local purposes. I have therefore made a simpler key to cover the species of java only, and hope this will be of service to botaniists in Java.
SOME ADDITIONAL SPECIES OF HETEROGONIUM R. E. HOLTTUM
REINWARDTIA Vol 3, No 2 (1955): vol.3 no.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.1955.956

Abstract

The free-veined indusiate species of Heterogonium Presl and two additional exindusiate species are redescribed. Fire new combinations under this generic name are made.
SOME ADDITIONAL SPECIES OF HETEROGONIUM R. E. HOLTTUM
Reinwardtia Vol. 3 No. 2 (1955)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The free-veined indusiate species of Heterogonium Presl and two additional exindusiate species are redescribed. Fire new combinations under this generic name are made.
SOME ADDITIONAL SPECIES OF HETEROGONIUM R. E. HOLTTUM
Reinwardtia Vol. 3 No. 2 (1955)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The free-veined indusiate species of Heterogonium Presl and two additional exindusiate species are redescribed. Fire new combinations under this generic name are made.
FLORAE MALESIANAE PRAECURSORES XVI ON THE TAXONOMIC SUBDIVISION OF THE GLEICHENIACEAE, WITH DESCRIPTIONS OF NEW MALAYSIAN SPECIES AND VARIETIES R. E. HOLTTUM
Reinwardtia Vol. 4 No. 2 (1957)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A new subdivision is given of the fern family Gleicheniaceae. The genus Platyzoma R. Br is excluded from the family. The genus Stromatopteris from New Caledonia is arranged in a distinct subfamily. In the remainder of the family, subfamily Gleichenioideae, two genera are recognized, Gleichenia (with subgenera Diplopterygium, Gleichenia, and Mertensia) and Dicranopteris (with subgenera Acropterygium and Dicranopteris) . The problem of subdividing the family is discussed with reference to former treatments and to new data, and a conspectus of the new system, with synonymy and key to the genera and subgenera, is given. A number of new species, new varieties, and new combinations is made both in Gleichenia and Dicranopteris.
TREE-FERNS OF THE GENUS CYATHEA IN JAVA R. E. HOLTTUM
Reinwardtia Vol. 7 No. 1 (1965)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A full taxonomic study of the genus Cyathea has recently been published in Flora Malesiana (Ser. II, vol. 1, part 2, Dec. 1963). In that work the genus is construed in a broad sense, to include Alsophila and Hemitelia (also Gymnosphaera and Schizocaena of Copeland's Genera Filicum), the total number of species being 191, and a new subdivision of this comprehensive genus is proposed. The keys in Flora Malesiana, dealing with such a large number of species, are complex, and not very easy to use for local purposes. I have therefore made a simpler key to cover the species of java only, and hope this will be of service to botaniists in Java.
FLORAE MALESIANAE PRAECURSORES XVI ON THE TAXONOMIC SUBDIVISION OF THE GLEICHENIACEAE, WITH DESCRIPTIONS OF NEW MALAYSIAN SPECIES AND VARIETIES R. E. HOLTTUM
Reinwardtia Vol. 4 No. 2 (1957)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A new subdivision is given of the fern family Gleicheniaceae. The genus Platyzoma R. Br is excluded from the family. The genus Stromatopteris from New Caledonia is arranged in a distinct subfamily. In the remainder of the family, subfamily Gleichenioideae, two genera are recognized, Gleichenia (with subgenera Diplopterygium, Gleichenia, and Mertensia) and Dicranopteris (with subgenera Acropterygium and Dicranopteris) . The problem of subdividing the family is discussed with reference to former treatments and to new data, and a conspectus of the new system, with synonymy and key to the genera and subgenera, is given. A number of new species, new varieties, and new combinations is made both in Gleichenia and Dicranopteris.
TREE-FERNS OF THE GENUS CYATHEA IN JAVA R. E. HOLTTUM
Reinwardtia Vol. 7 No. 1 (1965)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A full taxonomic study of the genus Cyathea has recently been published in Flora Malesiana (Ser. II, vol. 1, part 2, Dec. 1963). In that work the genus is construed in a broad sense, to include Alsophila and Hemitelia (also Gymnosphaera and Schizocaena of Copeland's Genera Filicum), the total number of species being 191, and a new subdivision of this comprehensive genus is proposed. The keys in Flora Malesiana, dealing with such a large number of species, are complex, and not very easy to use for local purposes. I have therefore made a simpler key to cover the species of java only, and hope this will be of service to botaniists in Java.
Co-Authors A. H. G. ALSTON