isodiametric |
|
architecture |
|
Of approximately constant breadth in all median planes. |
derivation |
|
CHARACTER |
|
Ontogenetic origin. |
antheridium pl. antheridia |
|
STRUCTURE |
|
A male gametangium; a multicellular fertile organ of a mature gametophyte within which male gametes (antherozoids, spermatozoids) are produced and from which they are discharged, in some taxa forcibly, through a pore. Technically present but highly reduced and of no descriptive significance in Magnoliophyta and part of Pinophyta. |
androgynous |
|
reproduction |
taxon |
Monoecious, each inflorescence having a distal sector with only staminate flowers and a proximal sector with only pistillate ones. |
stilt-rooted |
|
architecture |
plant |
Bearing and partly supported by stilt roots. |
staminal |
|
insertion |
|
Upon or otherwise directly associated with the stamens. |
strobiloid |
|
architecture |
flower |
Characterized by a general lack of adnation among the different sets of basic floral structures, any significant degree of fusion limited to connation within sets, thus with ovary(ies) superior and lacking a floral tube. |
synangium pl. synangia |
|
STRUCTURE |
|
A compound sporangium; an aggregation of coherent sporangia, the whole multilocular. |
ochrea |
|
STRUCTURE |
|
See ocrea. |
supervolute |
|
vernation |
|
Each with one side rolled adaxially inward from the margin and enveloped by the abaxially rolled opposite side. |
duration |
|
CHARACTER |
|
Extent of lifetime, or persistence and physical state after maturation. |
obdiplostemonous |
|
architecture |
flower, androecium |
Having the stamens dicyclic, the proximal whorl with members directly above the petals, the distal whorl with members directly above the sepals. See also diplostemonous. |
thyrsate |
|
architecture |
inflorescence |
Comprising one or more thyrses. |
palmatifid |
|
solid shape |
|
Palmately lobate; having three or more lobes whose longitudinal axes radiate from a common point. |
terminal |
|
position |
|
Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. |
epinastic |
|
development |
laminar structure |
Having the adaxial surface differentiating and growing faster than the abaxial surface, thus, until maturity, development of the former more advanced than that of the latter at any given time and the structure as a whole revolute or recurved. |
filament |
|
STRUCTURE |
|
The stalk, when present, of a stamen, clearly differentiated from and bearing at its summit an anther. |
perfect |
|
architecture |
flower |
Having functional pistil(s) and functional stamen(s) both present, thus bisexual (hermaphroditic). |
foliose 2 |
|
architecture |
thallus |
Having leaf-like lobes; in Hepaticae. |
follicetum pl. folliceta |
|
STRUCTURE |
|
An aggregate of follicles produced from a single flower with multiple simple pistils. |
pith |
|
STRUCTURE |
|
The central ground tissue of a stem or, when present, of a root, consisting of thin-walled parenchyma cells; distinct and more or less soft and spongy relative to the other tissues of the axis; sometimes partly or wholly degenerating after secondary growth has begun. |
capsular |
|
architecture |
fruit |
Having the structure and texture of a capsule. |
flexuose |
|
course |
|
See flexuous. |
pseudoaxillary |
|
insertion |
|
Only apparently axillary; originally extraaxillary but displaced to the axil by differential growth during development. |
gigantic |
|
size |
plant |
Strongly enlarged; unusually or unexpectedly very large throughout. |