page_title: Lactarius subflammeus
section_title: Microscopic characteristics
hierarchical_section_title: Lactarius subflammeus / Description / Microscopic characteristics
caption_attribution_description: English: Spore of the mushroom Lactarius subflammeus Hesler &amp; A.H. Sm.
context_page_description: Lactarius subflammeus, commonly known as the orange milk cap, is a species of fungus in the family Russulaceae. It is found in western North America in the late summer and fall and is especially common in the Pacific Northwest, where it grows on the ground near conifers like pine and spruce. The brightly colored fruit bodies, which are slimy or sticky, have scarlet caps when young that soon fade to brilliant orange. The stem—typically longer than the width of the cap—is also bright orange but the gills are whitish. The mushroom secretes a whitish latex when it is cut or injured.
context_section_description: The spores are 7.5–9 by 6.5–7.5 µm, with an ellipsoid shape. Their surfaces are ornamented with warts and short ridges that do not form a reticulum (a network of raised net-like ridges on the surface), with ridges up to 1.0 µm high. The spores are hyaline (translucent), and amyloid—they absorb iodine when stained with Melzer's reagent. The basidia (spore-bearing cells) are four-spored, and measure 42 by 9 µm. The cap cuticle is a modified ixotrichoderm, meaning that the hyphae are embedded in a slimy or gelatinous layer.
caption: The spores are hyaline and covered with warts and short ridges.
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