Typhaceae

fruit or seed

Fruit dehiscentdehiscent:
(v. dehisce) splitting open at maturity to release contents (of a fruit)
, folliclefollicle:
a dry to (rarely) fleshy fruit derived from a single carpel that opens along a single longitudinal suture; the seeds may be arillate or with a fleshy testa
(Typha, with persistent stylestyle:
in a flower, the narrow and elongated part of the pistil between the stigma and the ovary; sometimes persisting in fruit
and long hairs derived from the perianthperianth:
collective term for calyx and corolla of a flower
) or indehiscentindehiscent:
not opening on its own, as in a fruit
, drupedrupe:
(indehiscent drupe) a fleshy, indehiscent fruit with one more hard pits enclosing seeds; (dehiscent drupe) a fruit with a dry or fibrous to fleshy or leathery outer husk that early to tardily breaks apart (or opens), exposing one or more nutlike pits enclosing the seeds
or acheneachene:
a dry, indehiscent, one-seeded fruit, with seed attached to pericarp at a single point
, (Sparganium), 2–7 mm long, beakedbeaked:
a usually firm, terminal appendage, sometimes tapered
(persistent stylar remnants), fusiformfusiform:
spindle-shaped; broadest at the middle and tapering at both ends
to trigonoustrigonous:
3D shape—having three faces that meet at distinct angles; triangular in outline
, tereteterete:
approximately circular in cross section; width and thickness approximately equal
or angledangled:
2D shape—having sides that meet at acute or obtuse angles  
in transectiontransection:
a cross section; representing a plane made by cutting across an organ at a right angle to its length
, usually one seeded. In Typha, the pericarppericarp:
fruit wall or fruit coat
is transparent and splitting longitudinally in water to release minute seed. In Sparangium, the pericarppericarp:
fruit wall or fruit coat
is spongyspongy:
soft, light, discontinuous but cohesive, and somewhat resilient
to fleshyfleshy:
texture—fairly firm and dense, juicy or at least moist, and easily cut
, sometimes drydry:
texture—free or relatively free from water or liquid
, but with a bonybony:
very hard and rather brittle, like bone
endocarp, and sometimes with more than one seed. Pericarppericarp:
fruit wall or fruit coat
brown or green, shinyshiny:
uniformly reflecting a high proportion of incident light at all angles
or dulldull:
reflecting only a low proportion of incident light, with no apparent sheen
, smooth or ridgedridged:
surface relief—raised, thick ridges, sharp edged or rounded, usually in a series that may cover the entire surface
.

Seed ellipsoidellipsoid:
3D shape—elliptic
, ovoidovoid:
3D shape—ovate
, linearlinear:
(shape) long, narrow, and uniform in width; (of embryo) embryo is straight and much longer than wide
, or fusiformfusiform:
spindle-shaped; broadest at the middle and tapering at both ends
, tereteterete:
approximately circular in cross section; width and thickness approximately equal
in transectiontransection:
a cross section; representing a plane made by cutting across an organ at a right angle to its length
, 0.7–1.5 mm long. Seed coat brown, thinthin:
having or being of relatively little depth
, membranousmembranous:
texture—extremely thin, pliable, and fairly tough
, punctatepunctate:
surface relief—dotted with pits or with translucent, sunken glands or with colored dots, similar to pitted
, striatestriate:
surface relief—having fine, parallel lines, grooves or ridges
, or reticulatereticulate:
surface relief—netted, raised walls or concave grooves forming a net-like surface pattern with flat, concave, or convex interspaces
. Seeds with scanty perispermperisperm:
seed nutritive tissue comparable to the endosperm, but derived from the nucellus (maternal tissue)
. In Sparagnium, seed coat thinthin:
having or being of relatively little depth
but with a thickened “seed lid”.

Embryo well developed, linearlinear:
(shape) long, narrow, and uniform in width; (of embryo) embryo is straight and much longer than wide
or cylindriccylindric:
3D shape—a cylinder, with parallel sides and a circular cross-section; tubular or rod-shaped
, straight, partially filling seed coat. Endospermendosperm:
nutritive starch- and oil-containing tissue present in many seeds
copious.