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aperturate usually

Listing 1 - 5 from 5 for aperturate usually

Angiosperm Families - Annonaceae Juss.
... aggregated, in tetrads (usually), or in polyads (octads in Trigynaea). Pollen grains aperturate (usually), or nonaperturate; 1 aperturate (mostly), or 2 aperturate; (mono) sulcate (mostly, occasionally with two parallel furrows at the equator), or ulcerate (rarely); 2-celled. Gynoecium usually ...

Angiosperm Families - Bignoniaceae Juss.
... initial microspore tetrads tetrahedral. Tapetum amoeboid. Pollen grains aperturate (usually), or nonaperturate; 2–12 aperturate; colpate, or colporate; 2-celled. Gynoecium 2 ... usually), or fleshy (rarely); dehiscent (usually), or indehiscent (rarely); a capsule (usually), or a berry (rarely). Capsules septicidal, or loculicidal. Seeds non-endospermic (with Schlegelieae excluded); winged (usually ...
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Glossary of Pollen and Spore Terminology - Part 2 (D-H)
... ridge (Wodehouse, 1928) A ridge lying along the equator in the mesocolpial region, usually applied to lophate pollen grains. Example: Cichorium intybus (Compositae). Equatorial view (Erdtman, 1943) ... grains. See also: internal foramen. Fossaperturate (adj.) (Erdtman, 1952) Refers to an equatorially aperturate, lobate pollen grain with the apertures in the indentations between the lobes. Comment: ...

Glossary of Pollen and Spore Terminology - Part 5 (S-Z)
... under each murus. Example: Viburnum opulus (Caprifoliaceae). See also: duplicolumellate, pluricolumellate. Sinu-aperturate (adj.) (Erdtman, 1952) Describing a pollen grain in which the equatorial apertures ... pollen was included in the syncolpate class. Spore A general term for the usually microscopic, unicellular, asexual or sexual reproductive units of cryptogams and fungi (Jackson, 1928 ...
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Chapter 3: Taxonomy, Page 1
... usually, and usually complex). The terminal inflorescence unit cymose. Inflorescences axillary (usually), or terminal; usually complex panicles; usually spatheate. Flowers small; more or less regular; 3 merous; cyclic (usually ... layer. Tapetum glandular. Pollen grains aperturate; 1 - aperturate (usually), or 2-aperturate; sulcate (usually, sometimes trichotomosulcate), or sulculate (2-sulculate); ...

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