Flora of North America Glossary
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| Term | Synonyms | Category | Limitation | Definition |
|---|---|---|---|---|
| …loculed | = …locular | architecture | anther, ovary, fruit | Having the number of locules indicated by the prefix; as in one-loculed, five-loculed. |
| loculicidal | dehiscence | fruit | Splitting longitudinally through the outer wall(s) and directly into the locule(s), between the sutures, if any. | |
| lodicule | = squamella | STRUCTURE | One of two or three small, scale-like structures inserted at the base of the androecium, distal to the palea, in most grass (Poaceae) flowers; often regarded as a vestigial branch or perianth member. | |
| loment | < schizocarp | nominative | fruit | A schizocarp with superposed locules; derived from a single, superior, simple ovary; disarticulating at transverse constrictions between the locules; in Fabaceae (Leguminosae). See also legume. |
| longitudinal 1 | dehiscence | Parallel to the central axis. | ||
| longitudinal 2 | orientation | Parallel to the long axis of the context of reference. | ||
| loose 1 | = lax | architecture | Having equivalent constituent parts disposed distant from one another. | |
| loose 2 | texture | Soft overall, discontinuously and only weakly cohesive. | ||
| lorate | = liguliform, strap-shaped | solid shape | Elongate and relatively thin with the opposite faces more or less plane and moderately narrow, their edges more or less straight and parallel over most of their length; resembling a strap. | |
| lumen pl. lumina | FEATURE | A space enclosed by the wall(s) or membrane(s) of a structure. | ||
| lunate | = crescent-shaped | plane shape | Arcuate, broadest at the middle, and attenuate to acute ends; like the stylized outline of a first-quarter moon. | |
| lustrous | = glossy, laevigate, polished, shining, shiny | reflectance | Uniformly reflecting a high proportion of incident light at all angles. | |
| lyrate | = lyre-shaped | plane shape | Basically obovate but with several proximal concavities on each side, these sinuses opposite one another in pairs and decreasing in size toward the base; like the frontal outline of a lyre. | |
| lyre-shaped | = lyrate | plane shape | Basically obovate but with several proximal concavities on each side, these sinuses opposite one another in pairs and decreasing in size toward the base; like the frontal outline of a lyre. | |
| macrophyll (not recommended) | = leaf, megaphyll; > frond, needle | STRUCTURE | A principal, vegetative shoot organ borne laterally from a stem node; its vascular tissues, if any, continuous with those of the stem; undergoing no significant secondary growth; usually more or less bilaterally symmetrical; comprising a distal, usually laminar blade and/or a proximal stalk (petiole) or sheath; usually a primary site of photosynthesis. | |
| macrophyllous (not recommended) | = megaphyllous | architecture | plant | Bearing megaphylls. |
| macrosporangium pl. macrosporangia (not recommended) | = megasporangium | STRUCTURE | A sporangium that produces megaspores. | |
| macrospore (not recommended) | = megaspore | STRUCTURE | A female spore; a spore of the larger of two types produced by the sporophytes of a heterosporous taxon; produced in a megasporangium; giving rise upon germination to a megagametophyte. | |
| macrosporocarp (not recommended) | = megasporocarp | STRUCTURE | A sporocarp that bears only macrosporangia (megasporangia). | |
| macrosporophyll (not recommended) | = megasporophyll; > carpel, cone scale, ovuliferous scale | STRUCTURE | A sporophyll that bears only megasporangia and, in Pinophyta, naked ovules that develop subsequently. | |
| macrostrobilus pl. macrostrobili (not recommended) | = female cone, megastrobilus | STRUCTURE | A strobilus (cone) whose fertile organs are all megasporophylls. | |
| macula pl. maculae | = blotch, spot | FEATURE | An area that differs in color from the rest of a structure's surface, usually due to differing coloration. See also eyespot. | |
| maculate | = blotched, spotted | coloration | Having one or more areas that differ in color from the rest of the surface. See also eyespotted. | |
| main stem | = primary stem; > bole, trunk | STRUCTURE | The one, or any of the more than one, first-order stem(s), or first-order portion(s) of the collective stem, of a shoot. | |
| male | = masculine | reproduction | Of the sex that produces microspores and sperm. |
Displaying 1376-1400 of 2673