Search Results: Protostele


Stele (biology)
Jumat, 2025-10-10 10:37:13

vascular system. Such an arrangement is termed a protostele. There are usually three basic types of protostele: haplostele – consisting of a cylindrical core...

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Microphylls and megaphylls
Rabu, 2026-04-29 07:25:03

the classical concept of a microphyll, the leaf vein emerges from the protostele without leaving a leaf gap. Leaf gaps are small areas above the node of...

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Lycophyte
Minggu, 2026-05-24 20:17:10

than terminal sporangia (often kidney-shaped or reniform), and exarch protosteles, in which the protoxylem is outside the metaxylem rather than vice versa...

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Psilotum complanatum
Sabtu, 2025-05-17 23:45:41

developed leaves but have minute scales. The stems and branches have protostele, with a triangular-shaped core of xylem. The scales are arranged in two...

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Lepidodendrales
Senin, 2025-06-02 10:27:13

morphological development as the plant grew. The young trunk began as a protostele in which the outer xylem matured first (exarch), but the later and higher...

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Psilotum
Minggu, 2026-05-17 21:43:29

more but has no apparent leaves. The stem has a core of thick-walled protostele in its centre surrounded by an endodermis which regulates the flow of...

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List of Greek and Latin roots in English/P–Z
Kamis, 2025-06-19 11:02:45

metastasis, metastasize, metastatic, metasystem, orthostates, orthostatic, protostele, stasimon, stasis, stater, static, statoblast, statocyst, statolith, stela...

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Hsua
Selasa, 2024-05-14 09:03:22

lateral branches are in a plane (planar). In the centre of the axes is a protostele with an elliptical cross-section. The protoxylem was probably inside the...

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Selaginella
Senin, 2026-04-06 11:39:51

erythropus). The vascular steles are polystelic protosteles. Stem section shows the presence of more than two protosteles. Each stele is made up of diarch (having...

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Evolutionary history of plants
Senin, 2026-05-18 20:57:18

the microphyllous leaves of clubmosses developed by outgrowths of the protostele connecting with existing enations The leaves of the Rhynie genus Asteroxylon...

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Aglaophyton
Rabu, 2025-10-01 02:58:13

tracheophyte, because the stem has a simple central vascular cylinder or protostele, but more recent interpretations in the light of additional data indicated...

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Barinophyte
Selasa, 2024-04-23 07:50:15

Protobarinophyton is similar. They were vascular plants with an exarch protostele. Plants consisted of alternatively arranged branches, apparently without...

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List of Greek and Latin roots in English/S
Kamis, 2026-02-26 09:52:43

metastasis, metastasize, metastatic, metasystem, orthostates, orthostatic, protostele, stasimon, stasis, stater, static, statoblast, statocyst, statolith, stela...

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Asteroxylon
Kamis, 2026-03-12 18:37:53

and has been considered an early actinostele or an "Asteroxylon-type" protostele. The tracheids are of the primitive annular or helical type (so-called...

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Lyginopteridales
Kamis, 2025-11-27 22:08:01

pad. The Mississippian-aged lyginopteridaleans tended to have a simple protostele usually surrounded by secondary wood, but in later forms there was a eustele...

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Rhyniophyte
Kamis, 2024-01-04 00:43:54

crassiparietilis and Renalia had bilaterally symmetrical sporangia and protosteles. There is no agreement on the formal classification to be used for the...

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Gleicheniaceae
Minggu, 2026-05-31 09:31:04

widespread living lineage of Gleicheniales. Their rhizomes have a "vitalized" protostele or in some taxa a solenostele. The leaves are indeterminate, with pseudodichotomously...

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Franhueberia
Minggu, 2024-06-02 21:16:37

within a single cobble and consists of a small axis with a centrarch protostele. The secondary tissues of the vascular cambium contain extinct P-type...

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Selaginella moellendorffii
Selasa, 2026-01-13 03:22:59

displays dichotomous branching patterns. Its vascular system comprises protosteles, and roots arise from specialized structures called rhizophores. These...

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Nothia aphylla
Selasa, 2025-12-09 10:58:57

and the vertical stems had vascular tissue which formed a central core (protostele), and is described as having centrarch development. The precise structure...

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