fungi mushrooms mycology the fifth kingdom

Pictorial supplement to The Fifth Kingdom - Chapter 5a

Subphylum Basidiomycotina - Introduction 

(11 pictures, 1 animation)

dolipor1.jpg (7177 bytes)
Holobasidiomycetes - TEM section through a dolipore septum
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clamp2.jpg (7284 bytes)
Holobasidiomycetes - TEM section through a clamp connection
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clamps1.jpg (6388 bytes)
Holobasidiomycetes - clamped hyphae (phase contrast illumination)
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basidium1.GIF (114915 bytes)
Holobasidiomycetes - animation showing karyology (nuclear behaviour) during spore formation by a basidium

ascbas3.gif (7687 bytes)
Cartoon of the ascomycete-basidiomycete comparison

basid4.jpg (5563 bytes)
Holobasidiomycetes - basidia of Coprinus.  Note that the nuclei have not yet migrated into the basidiospores.

basid5.jpg (5986 bytes)
Holobasidiomycetes - SEM of asymmetrically borne basidiospores (this indicates that they are ballistospores)

sterig1.jpg (5946 bytes)
Holobasidiomycetes - TEM of section through a sterigma bearing a ballistosporic basidiospore.

basid6.gif (4418 bytes)
Holobasidiomycetes - drop coalescence with water film on spore as the trigger and energy source for basidiospore discharge, from Webster et al. (1988)
Trans. Brit. Mycol. Soc. 91: 193-203.

basid2.jpg (6239 bytes)
Holobasidiomycetes - a young basidium of Russula. Note that the spores are borne asymmetrically.

basid3.jpg (4042 bytes)
Holobasidiomycetes - basidium of a sequestrate basidiomycete, Gastrocybe, in which the basidiospores are symmetrically mounted, and are not forcibly discharged.

basmycel.jpg (7998 bytes)
Holobasidiomycetes - typical fan-like mycelium spreading across rotting wood.

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