Seed and Fruit Surface Textures


Alveolate

Colliculose

Fine-Textured

Granular

Pappilate

Punctate

Reticulate

Ribbed

Ridged

Tuberculate
after: Davis, 1993
SEED SURFACE TEXTURES
    Alveolate: with depressions (lumina) and walls (muri) giving the appearance of a honeycomb or windows. -- lumina and muri composed of transparent parenchymous tissue. (same as pollen) Verbena, Orthocarpus
    Annulate: Ringed by circumferential grooves or ridges. Silene
    Bullate: puckered or blistered. Jacobina
    Cellular Reticulate: net-like, with reticulum walls corresponding to cell walls (see reticulate). Datura
    Colliculose: a negative reticulum, with "net" lines formed by depressions instead of projections (see reticulate). Koberlinia
    Glaucous: covered with a very fine layer of wax. Berberis fruits
    Grooved: with parallel elongated depressions, coarser than striate.
    Hairy: covered with hairs. Hibiscus
    Muricate: covered with very short spines.
    Papillate: with nipple-like projections. Canotia
    Pitted: (= foveolate) covered with widely-spaced depressions. Tradescantia
    Punctate: covered with very small depressions. Nuphar
    Reticulate: net-like, with raised walls forming the "net."
    Ridged: with parallel elongated projections, coarser than striate. Verbascum
    Rugose: (wrinkled) covered with coarse, blunt projections of variable size. Proboscidia
    Rugulose: finely wrinkled (see rugose). Sambucus
    Spinose: with sharp protruding projections.
    Striate: with fine parallel projections. Verbascum
    Sulcate: with one marked depression, often surrounding hilum. Plantago (Verbena)
    Verrucose: densely covered with wart-like projections. Similar to rugose but projections isodiametric. (Canotia).