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Most commonly Cephaleuros virescens is identified by the leaf spots it causes. Theses leaf spots are an orange-brown rust in color and usually occur entirely on the upper leaf surface, although leaf spots on the undersides of infected leaves have been reported. The spots are fuzzy in texture and approximately 2 cm (0.8 in) in diameter. [2]
The flowers are fragrant and are arranged in loose groups, each flower on a pedicel 1–1.5 mm (0.039–0.059 in) long. There are five (sometimes four) sepals about 1 mm (0.039 in) long and five (sometimes four) white or cream-coloured petals 13–18 mm (0.51–0.71 in) long. and the fruit is an oval, glabrous, orange-red berry 12–14 mm (0.47 ...
Philadelphus (/ ˌ f ɪ l ə ˈ d ɛ l f ə s / [2]) (mock-orange) is a genus of about 60 species of shrubs from 3–20 ft (1–6 m) tall, native to North America, Central America, Asia and (locally) in southeast Europe.
Hard spot lesions on an orange host. Hard spots are the most common lesions. They are small, round, and sunken. The average diameter of hard spot lesions ranges from 3–10 mm (.12-.4 in). [13] [14] They have dark red to chocolate brown margins and often have pycnidia in the gray-colored centers. [15] A green halo may be present around the ...
Hemerocallis fulva, the orange day-lily, [3] tawny daylily, corn lily, tiger daylily, fulvous daylily, ditch lily or Fourth of July lily (also railroad daylily, roadside daylily, outhouse lily, track lily, and wash-house lily), [citation needed] is a species of daylily native to Asia.
The flowers are 2–3 cm (3 ⁄ 4 – 1 + 1 ⁄ 4 in) long, [10] orange (sometimes blood orange or rarely yellow) with a three-lobed corolla; one of the calyx lobes is colored similarly to the corolla and forms a hooked conical spur at the back of the flower. Plants may also produce non-showy cleistogamous flowers, which do not require cross ...
The flowers are sessile, almost sessile or stand on flower stalks up to 1.5 mm long. Blooming constantly through the year, the flowers produce a citrus-like scent at night. [5] The calyx is tubular, 5 to 6.5 (rarely up to 9) mm long and hairless except for the (0.7) 1 to 2 (3) mm long, ciliate calyx lobes. These are awl-shaped and long-spiked ...
Citrus greening is distinguished by the common symptoms of yellowing of the veins and adjacent tissues (hence the "yellow dragon" name given by observing Chaozhou farmers as early as the 1870s [1]); followed by splotchy mottling of the entire leaf, premature defoliation, dieback of twigs, decay of feeder rootlets and lateral roots, and decline in vigor, ultimately followed by the death of the ...