Typhaceae
Perennial, palustrial or aquatic herbs with a creeping rhizome; stems erect, solid, submerged at the base. Leaves biseriate, partly radical or subradical, partly cauline, lower congested, higher remote, elongate-linear, rather thick and spongy, bluntmargined; their sheathing bases excreting slime on...
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1948
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Online Access: | https://repository.naturalis.nl/pub/532543 |
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ftnaturalis:oai:repository.naturalis.nl:532543 2024-02-11T10:01:37+01:00 Typhaceae Backer, C.A. 1948-01-01 application/pdf https://repository.naturalis.nl/pub/532543 unknown https://repository.naturalis.nl/pub/532543 Flora Malesiana - Series 1, Spermatophyta vol. 4 no. 1, pp. 242-244 info:eu-repo/semantics/article 1948 ftnaturalis 2024-01-17T23:24:00Z Perennial, palustrial or aquatic herbs with a creeping rhizome; stems erect, solid, submerged at the base. Leaves biseriate, partly radical or subradical, partly cauline, lower congested, higher remote, elongate-linear, rather thick and spongy, bluntmargined; their sheathing bases excreting slime on their inner side. Flowers very numerous, very closely packed in 2 or less often 3, superposed, contiguous or more or less remote terete unisexual spikes; upper spike male; the 1-2 lower \xe2\x99\x80; all spikes at the base with a foliaceous bract which falls off long before anthesis; the \xe2\x99\x80 spikes here and there between the flowers often with a similar bract. \xe2\x99\x82 Flowers consisting of 3 flat hairs together surrounding 2-5 stamens; anthers basifixed, linear, 2-celled; connective shortly produced; cells back to back, bursting longitudinally; pollengrains free or cohering in tetrads. Rachis of \xe2\x99\x80 spathe closely studded with patent cylindrical thickish excrescences; between these excrescences and on their basal part beset with flowers containing a fertile ovary; higher part of the excrescences bearing rudimentary ovaries. \xe2\x99\x80 Flowers with or without a very narrow bracteole; bracteole with a more or less broadened, often dentate-acuminate apex either entirely hidden by the flowers or their apex visible externally. Ovary borne by a long very thin stalk (gynophore) which bears long hairs on its base, fusiform, 1- celled; style distinct thin; stigma broadened, unilateral, linear or spathulate. Fruit small, fusiform, or elongate-ovoid, falling off together with its stalk from the pilose axis of the spike, finally bursting by a longitudinal slit; seed pendulous, striate; endosperm mealy; embryo narrow, straight, nearly as long as the seed.\nDistr. Throughout the world between the arctic circle and lat. 35 S, comprising \xc2\xb1 7 spp., in Malaysia only one very variable species. Article in Journal/Newspaper Arctic Naturalis Institutional Repository Arctic The Spike ENVELOPE(-37.317,-37.317,-54.017,-54.017) |
institution |
Open Polar |
collection |
Naturalis Institutional Repository |
op_collection_id |
ftnaturalis |
language |
unknown |
description |
Perennial, palustrial or aquatic herbs with a creeping rhizome; stems erect, solid, submerged at the base. Leaves biseriate, partly radical or subradical, partly cauline, lower congested, higher remote, elongate-linear, rather thick and spongy, bluntmargined; their sheathing bases excreting slime on their inner side. Flowers very numerous, very closely packed in 2 or less often 3, superposed, contiguous or more or less remote terete unisexual spikes; upper spike male; the 1-2 lower \xe2\x99\x80; all spikes at the base with a foliaceous bract which falls off long before anthesis; the \xe2\x99\x80 spikes here and there between the flowers often with a similar bract. \xe2\x99\x82 Flowers consisting of 3 flat hairs together surrounding 2-5 stamens; anthers basifixed, linear, 2-celled; connective shortly produced; cells back to back, bursting longitudinally; pollengrains free or cohering in tetrads. Rachis of \xe2\x99\x80 spathe closely studded with patent cylindrical thickish excrescences; between these excrescences and on their basal part beset with flowers containing a fertile ovary; higher part of the excrescences bearing rudimentary ovaries. \xe2\x99\x80 Flowers with or without a very narrow bracteole; bracteole with a more or less broadened, often dentate-acuminate apex either entirely hidden by the flowers or their apex visible externally. Ovary borne by a long very thin stalk (gynophore) which bears long hairs on its base, fusiform, 1- celled; style distinct thin; stigma broadened, unilateral, linear or spathulate. Fruit small, fusiform, or elongate-ovoid, falling off together with its stalk from the pilose axis of the spike, finally bursting by a longitudinal slit; seed pendulous, striate; endosperm mealy; embryo narrow, straight, nearly as long as the seed.\nDistr. Throughout the world between the arctic circle and lat. 35 S, comprising \xc2\xb1 7 spp., in Malaysia only one very variable species. |
format |
Article in Journal/Newspaper |
author |
Backer, C.A. |
spellingShingle |
Backer, C.A. Typhaceae |
author_facet |
Backer, C.A. |
author_sort |
Backer, C.A. |
title |
Typhaceae |
title_short |
Typhaceae |
title_full |
Typhaceae |
title_fullStr |
Typhaceae |
title_full_unstemmed |
Typhaceae |
title_sort |
typhaceae |
publishDate |
1948 |
url |
https://repository.naturalis.nl/pub/532543 |
long_lat |
ENVELOPE(-37.317,-37.317,-54.017,-54.017) |
geographic |
Arctic The Spike |
geographic_facet |
Arctic The Spike |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Flora Malesiana - Series 1, Spermatophyta vol. 4 no. 1, pp. 242-244 |
op_relation |
https://repository.naturalis.nl/pub/532543 |
_version_ |
1790597410541535232 |