Signs
Signs of Leucostoma kunzei include the fungal stromata of its Cytospora stage which form annually in recently killed bark of cankers and more abundantly, outside of girdling cankers. Pycnidial stromata are shaped like short cones, 1-2 mm in diameter, with fertile chambers radiating from the center and opening through a common pore at the top. During moist conditions,they will produce yellow tendrils of conidia. An individual stroma however, only does this once. Conidia are unicellular, allantoid (sausage shaped), and 4-6 x 0.5-1 µm in size. Perithecial stromata which mature in spring are also short conic and 1–2 mm in diameter. The interior tissue is pale yellow to grayish brown with 5-30 black perithecia embedded within. Perithecia are 200-600 µm in diameter, and their necks converge at the disc-like top of the stroma. The disc is usually 0.2-1.0 mm in diameter and gray to black on the surface. The ascospores are hyaline (colorless), unicellular, curved, and measure 5-8 x 1-2 µm.
Read more about this topic: Leucostoma Kunzei
Famous quotes containing the word signs:
“Superfluous lags the veteran on the stage,
Till pitying Nature signs the last release,
And bids afflicted worth retire to peace.”
—Samuel Johnson (1709–1784)
“Cows wandered through the streets.... Vegetables grew chiefly in cans, and stream-beds and cañons glittered with these omnipresent signs of civilization.”
—Administration in the State of Colo, U.S. public relief program (1935-1943)
“Wherever I look, I see signs of the commandment to honor one’s parents and nowhere of a commandment that calls for the respect of a child.”
—Alice Miller (20th century)