androecial tube |
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STRUCTURE |
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The tubular portion of an androecium in which the component structures have fused with one another laterally over part or all their lengths. |
spicate |
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architecture |
inflorescence |
Comprising one or more spikes. |
odor |
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CHARACTER |
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Olfactory stimulation. |
utricle |
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nominative |
fruit |
Dry, indehiscent, one-seeded and with the pericarp thin and free from the seed; derived from a single, superior, simple ovary. |
intercostal |
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insertion |
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Between the costae. |
silique |
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nominative |
fruit |
Dry, septifragal, two-loculed and derived from a single, superior, compound ovary; much longer than broad; dehiscing along two sutures, one adaxial, one abaxial, leaving a single persistent septum (replum) after the two valves of the pericarp have fallen away; esp. in Brassicaceae (Cruciferae), Capparaceae. See also silicle. |
rachilla 1 var. rhachilla |
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STRUCTURE |
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A second- or higher-order axis of a compound leaf blade, bearing higher-order rachillae, leaflets, pinnules and/or tendrils. |
jacket cell |
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STRUCTURE |
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Any of the cells forming the portion of an antheridial wall between the basal cells and the cap cell(s). |
acrocaulous |
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position |
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At or very near the stem tip. |
pericolpate |
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architecture |
pollen grain |
Having more than three surficial grooves (colpi) oriented such that some or all of them cross meridians. |
glochidiate |
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pubescence |
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Bearing glochids (glochidia). |
chasmogamous |
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reproduction |
flower |
Having the perianth open at anthesis, allowing deposit of pollen from other flowers (physiological receptivity aside). |
haft |
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STRUCTURE |
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The narrow portion of a structure that is notably constricted. |
porosity |
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CHARACTER |
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Presence and disposition of vessels (pores) in wood (xylem). |
costal |
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position |
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Upon or otherwise directly associated with the costa(e) of a laminar structure. |
hilum 2 pl. hila |
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FEATURE |
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The more or less central point within a starch grain of intracellular origin, about which the successive layers of starch were accreted more or less symmetrically. |
stephanocolporate |
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architecture |
pollen grain |
Stephanocolpate, each groove containing a pore. |
lineolate 1 |
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coloration |
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Finely lineate, the lines short and often irregularly oriented. |
hygroscopic |
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architecture |
structure |
Increasing or decreasing in size according to the presence or absence of surrounding moisture, due to differential swelling or shrinking of component anatomical structures. |
submergent |
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location |
structure of aquatic plant |
Descending from above the water surface to a point beneath it. |
coalescent |
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fusion |
equivalent and/or dissimilar structures |
Partially and irregularly coherent and/or adherent. |
filament |
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STRUCTURE |
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The stalk, when present, of a stamen, clearly differentiated from and bearing at its summit an anther. |
convolute 2 |
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arrangement |
cotyledons |
Each rolled or folded inward longitudinally, one enveloping the other. |