Seed and Fruit 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).