saccate


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saccate

[′sa‚kāt]
(botany)
Having a saclike or pouchlike form.
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Pleurocystidia are absent but the clavate, filamentous, subutriform, saccate and fusoid-ventricose cheilocystidia are striking features of this variety.
Flotation preferentially selects saccate pollen during conifer pollination.
Geastrum lageniforme is mainly characterized by a mycelial layer with distinct longitudinal cracks, rays with slender tips (arachnoid-like rays), saccate basidiomata and distinctly delimited fibrillose peristome.
From this and the evidence of its existence in early groups one can conclude that presence of a pollination drop is ancestral in conifers, but lost from Araucariaceae and those members of Clade I and II that lack saccate pollen.
Chonanthelia) is recognized by the saccate lobule with a very short lamina, a narrow mouth (ca.
Volva (exoperidium remnant) present at the base of pseudostipe, 24-29 X 14-22 mm, saccate, white (8A1), basal rhizomorphs present.
8-40 perigynia; scales deciduous, but the basal one-third persisting as a conspicuous whitish green or pale brown saccate structure about 1 mm long, 2.
Branch appendages: first branch underleaf divided to the base into a lanceolate, bifid segment and a saccate segment, first leaf transformed into two saccate lobules.
Calyx lobes small, [+-] persistent; corolla sympetalous or polypetalous, campanulate or tubular, or perianth uniseriate, [+-] tubular, parts free, basally saccate, glabrous or with hairs adaxially.
5(-3) mm long, not or only slightly saccate at base; petals 2.
This genus is easily distinguished from Norantea Aublet and other related genera [Schwartzia Vellozo and Sarcopera Bedell, which constitute the Norantea complex] by its umbelliformly contracted raceme with relatively large flowers that are subtended by usually (sub) sessile (only in Marcgraviastrum glossostipum stipitate), recurved, tubular to saccate nectaries.
Both species have "similar large scarlet flowers, pubescence, and peculiar saccate appendages below which is a conspicuous clear area [extending down the claw].