|
deliquescent 2 |
|
texture |
|
Delicately fleshy and liquifying at maturity or with pressure; e.g., petals of Tradescantia (Commelinaceae). |
|
nut |
|
nominative |
fruit |
Relatively large, indehiscent, one-loculed, one-seeded and with a thick, hard, sometimes osseous pericarp; derived from a single, simple or compound ovary. See also acorn (glans). |
|
thallus 2 pl. thalli |
|
STRUCTURE |
|
The main body of a gametophyte, bearing rhizoids, gametangia (antheridia and/or archegonia), and/or gemmae cups; usually thin and more or less planate, inconspicuous, and growing appressed to or beneath the substrate surface; in Psilotophyta, Lycopodiophyta, Equisetophyta, Polypodiophyta. See also prothallus. |
|
epibracteal |
|
position |
|
Upon the bracts, or partially adnate thereto and apparently arising therefrom. |
|
true |
|
derivation |
indusium |
Constituting a distinct enation from the epidermis, not simply a marginal fold of the lamina as a whole. |
|
ellipsoid(al) |
|
solid shape |
|
Elliptic in any median longitudinal section; elongate, transversely circular, broadest at the middle, and symmetrically convex-attenuate to rounded ends. See also oblong. |
|
face |
|
FEATURE |
|
A relatively large, flat or shallowly curved portion of the external surface of a three-dimensional structure, bounded by more or less distinct topological discontinuities. |
|
paraphysis pl. paraphyses |
|
STRUCTURE |
|
An elongate, multicellular, sterile structure borne between sporangia within a sorus; in Polypodiophyta. |
|
unifacial |
|
architecture |
|
Having two opposite broad surfaces that are essentially similar in appearance. |
|
flange |
|
STRUCTURE |
|
A relatively broad, circumferential rim or ridge that protrudes laterally. |
|
porosity |
|
CHARACTER |
|
Presence and disposition of vessels (pores) in wood (xylem). |
|
rachis 1 var. rhachis |
|
STRUCTURE |
|
A main or first-order axis of a compound leaf blade. |
|
gynodioecious |
|
reproduction |
taxon |
Having some plants with only bisexual flowers and some with only pistillate ones. |
|
retrorse |
|
orientation |
|
Directed generally backward, toward the proximal end of the context of reference, parallel or at an acute angle to the bearing structure. |
|
heterogamous |
|
reproduction |
plant, inflorescence |
Having flowers that differ distinctly in size, shape and/or constitution. |
|
receptacular |
|
position |
|
Upon, arising from, or otherwise directly associated with the receptacle. |
|
branched 2 |
|
architecture |
laminar veinlet |
Dividing within the areole, each branch ending blindly. |
|
second glume |
|
STRUCTURE |
|
The upper (distal) member of a pair of small bracts inserted at the base of a grass (Poaceae) spikelet. |
|
chaff 1 |
|
STRUCTURE |
|
Collectively, the paleae (pales, palets) sometimes borne on the receptacle of a capitulum (head) in Asteraceae (Compositae). |
|
inframedial |
|
position |
|
Slightly below the middle of the structure in point. |
|
sheathing 1 |
|
architecture |
foliaceous structure |
Differentiated into distinct proximal and distal portions, the former terete or involute and closely enclosing the bearing axis above the point of insertion. |
|
casing |
|
STRUCTURE |
|
The portion (if any) of a floral tube that is adnate to the gynoecium. See also collar, neck. |
|
archegonium pl. archegonia |
|
STRUCTURE |
|
A female gametangium; a multicellular fertile organ of a mature gametophyte within which female gametes (eggs, ova) are produced and fertilized; having a broad, bulbous base and a narrower distal neck. Technically present but highly reduced and of no descriptive significance in Magnoliophyta. |
|
septal |
|
position |
|
Upon or otherwise directly associated with the septum or septa. |
|
basiramous |
|
architecture |
axis |
Branching at or near the base. See also basicauliramous. |
