Flora of North America Glossary
Displaying 276-300 of 2673
| Term | Synonyms | Category | Limitation | Definition |
|---|---|---|---|---|
| bole | = trunk; < main stem, primary stem | STRUCTURE | The relatively stout, columnar, main stem of a distinct aboveground portion of a tree. | |
| bony | = osseous | texture | Very hard and rather brittle, like bone. | |
| bossed | = umbonate | solid shape | Having an umbo. | |
| bostryx pl. bostryches | = helicoid cyme | nominative | inflorescence | A cyme in which each axial segment branches to only one side, and all branch to the same side, the whole thus appearing to have an elongate main axis that curves or coils toward its unbranched side. See also scorpioid cyme. |
| bottom-rooted | habit | plant | Aquatic and rooted in the substrate beneath the water. | |
| botuliform | = sausage-shaped | solid shape | Arcuately cylindric with rounded ends. | |
| brachiate | architecture | axis | Having alternate, divaricate branches. | |
| bract 1 (broad sense) | > bracteole, bractlet, phyllary, prophyll(um); >< scale | STRUCTURE | Any lateral structure ontogenetically and anatomically analogous with, and therefore presumably homologous with, but relatively smaller than, a leaf, especially when subtending an inflorescence, other reproductive structure, or portion thereof; putatively, an evolutionarily reduced leaf. | |
| bract 2 (strict sense) | STRUCTURE | Any primary or first-order lateral structure ontogenetically and anatomically analogous with, and therefore presumably homologous with, but relatively smaller than, a leaf, especially when subtending an inflorescence, other reproductive structure, or portion thereof; putatively, an evolutionarily reduced leaf. | ||
| bracteate | = bracted | architecture | Bearing or subtended by one or more bracts. | |
| bracted | = bracteate | architecture | Bearing or subtended by one or more bracts. | |
| bracteolate | = bractleted | architecture | Bearing or subtended by one or more bracteoles (bractlets, prophylls). | |
| bracteole 1 | = bractlet; < bract | STRUCTURE | A diminutive bract, or a bract that is smaller than others present. | |
| bracteole 2 | = bractlet, prophyll(um); < bract | STRUCTURE | A second- or higher-order bract within, and subtending some portion of, an aggregate branching structure, especially when subtending a flower. | |
| bractlet 1 | = bracteole; < bract | STRUCTURE | A diminutive bract, or a bract that is smaller than others present. | |
| bractlet 2 | = bracteole, prophyll(um); < bract | STRUCTURE | A second- or higher-order bract within, and subtending some portion of, an aggregate branching structure, especially when subtending a flower. | |
| bractleted | = bracteolate | architecture | Bearing or subtended by one or more bractlets (bracteoles, prophylls). | |
| branch | STRUCTURE | Any higher-order division of or outgrowth from an axis, vein or veinlet when such division or outgrowth is equivalent in nature to the structure of origin. | ||
| branched 1 | = ramiform, ramose, ramous | architecture | axis, vein | Dividing into or bearing branches. |
| branched 2 | architecture | laminar veinlet | Dividing within the areole, each branch ending blindly. | |
| branchlet | STRUCTURE | A branch of the highest or ultimate order. | ||
| breast-shaped | = mammiform | solid shape | Rounded conic, like the breast of a mammal. | |
| brickwork-like | = muriform | arrangement | cells | Disposed like bricks in a wall; in parallel rows, the members in each row overlapping the boundaries between members of the adjacent rows. |
| bristle 1 | = arista, awn, seta | STRUCTURE | A slender, more or less straight and stiff, fine-pointed, terminal or subterminal appendage or prolongation, sometimes a continuation of the bearing structure's central primary vein, as on a glume, lemma, or palea in Poaceae (Gramineae). | |
| bristle 2 | = seta; > glochid, glochidium; < trichome | STRUCTURE | A trichome that is elongate, more or less straight, terete, fine-pointed, and stiff. |
Displaying 276-300 of 2673