page_title: Suillus lakei
section_title: Description
hierarchical_section_title: Suillus lakei / Description
caption_attribution_description: English: Fruit bodies of the fungus Suillus lakei var. pseudopictus. Specimen photographed in Mendocino, California, USA.
context_page_description: Suillus lakei, commonly known as the matte Jack, Lake's bolete, or the western painted Suillus, is a species of fungus in the family Suillaceae. It is characterized by the distinctive reddish-brown tufted fibers or small scales on the cap, and the presence of a woolly veil on the stem. The caps can reach diameters of up to 15 cm, while the stems are between 6 to 12 cm long and usually 1–3 cm thick. On the underside of the cap is a layer of spongy yellow to yellow-brown angular pores; these pores are covered with a whitish partial veil when young. A mycorrhizal fungus, S. lakei grows in association with Douglas fir, and is found where this tree occurs. It is native to northwestern North America, but has been introduced to Europe, South America, and New Zealand. The mushroom is edible, but opinions vary considerably as to its quality.
context_section_description: The cap of S. lakei is up to 15 cm (5.9 in) in diameter and initially convex, but flattens out somewhat in maturity. The cap is fleshy, dry, yellowish to reddish-brown but fades with age. It is covered with pressed-down hairs or minute tufted scales in the center, with the yellowish flesh visible between the scales. Heavy rain can wash the fibrils off the cap surface, leaving a sticky, glutinous layer behind. Older specimens may be nearly smooth in age. Remnants of the partial veil sometimes hang from the edge of the cap. The cap margin is initially curved or rolled inwards, but unrolls as it grows and in maturity may be curled upward.
  The tubes that comprise the pore surface on the underside of the cap are 5–12 mm (0.2–0.5 in) deep; the angular pores are up to 2.5 mm wide and radially arranged. The pores range in color from yellow to brownish-yellow to ochre, and stain brownish or reddish-brown when bruised. They are covered by a partial veil in young specimens. The flesh is thick, yellow, and either unchanged in color when bruised or broken, or turns pinkish-red. The stem is 6 to 12 cm (2.4 to 4.7 in) long and usually 1–3 cm (0.4–1.2 in) thick, yellow sometimes with reddish streaks, and solid and yellow within. The species usually lacks the glandular dots on the stem that are characteristic of some Suillus species. The stem is either equal in width throughout its length, or tapered downwards. The tissue of the stem base may weakly stain bluish-green when cut, although this reaction is not usually apparent in mature specimens. The ring is delicate and floccose (resembling woolly tufts), and soon disappears or leaves a thin whitish ring on the stem. The spore print is cinnamon to brown in color. The variety calabrus, found in Italy, has a light yellow cap and purple-red scales. Variety pseudopictus has a cap that is redder and more scaly than the more common form.
  The spores are spindle-shaped to elliptical, have a smooth surface, and dimensions of 8–11 to 3–4 µm. There are both two- and four-spored basidia (spore-bearing cells), and they are club-shaped, hyaline (translucent), with dimensions of 28–36 by 10–12 µm. Cystidia are plentiful, and are found in bundles lined along the tube mouths (as cheilocystidia), or more commonly, singly along the sides of the tubes (as pleurocystidia). These structures are thin-walled, cylindrical, and measure 48–60 by 7–9 µm. The scales on the cap surface comprise more or less erect hyphae with tips that are clustered together. Clamp connections are rare in the hyphae.
caption: Variety pseudopictus has red cap and prominent scales.
exif: {"Image ImageDescription": "", "Image Make": "Canon", "Image Model": "Canon PowerShot SX110 IS", "Image Orientation": "Horizontal (normal)", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2008:11:21 11:46:04", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "240", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "180", "Thumbnail YResolution": "180", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "5108", "Thumbnail JPEGInterchangeFormatLength": "7864", "EXIF ExposureTime": "1/60", "EXIF FNumber": "14/5", "EXIF ISOSpeedRatings": "80", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2008:11:21 11:46:04", "EXIF DateTimeDigitized": "2008:11:21 11:46:04", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "3", "EXIF ShutterSpeedValue": "189/32", "EXIF ApertureValue": "95/32", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "95/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash fired, auto mode, red-eye reduction mode", "EXIF FocalLength": "6", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "3456", "EXIF ExifImageLength": "2592", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "3456", "Interoperability RelatedImageLength": "2592", "EXIF InteroperabilityOffset": "3208", "EXIF FocalPlaneXResolution": "3456000/229", "EXIF FocalPlaneYResolution": "288000/19", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF SceneCaptureType": "Standard"}