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权问薇
2018年05月19日
权问薇
给花开个加湿器 坐标北方以及内陆的朋友一定要注意了,在高温无雨天时,保证自家花周围的空气湿润度,否则叶子很容易萎蔫哦~ [图片]1、叶面喷水 叶面喷水是最简单的增加空气湿度的方法,只需要一个小小的喷壶即可。 喷洒时注意不要喷到花朵上,另外高温的中午以及午后不要喷水。 2、擦拭叶片 用湿布擦拭叶片也会起到一定的增加湿度的作用,而且水珠不会残留在叶片上。 擦拭的时候可以在水中加一点啤酒或者白醋,这样叶片可以更加青翠油亮。 3、坐盆浇水 不少朋友应该都会在花盆底下放一个托盘,用来盛浇水流出来的水。 在天气比较干燥的时候,可以把托盘里装满水。如果花盆太大,可以直接将花盆放在装水的洗脸盆中。 4、套个塑料袋 如果花已经因为空气干燥萎蔫了,可以浇透水,给叶子喷完水之后,给花套上塑料袋。这样能形成比较湿润的环境,给花“保湿补水”。 但是要注意,每隔半天打开塑料袋,给花透一下气。 给花撑把遮阳伞 高温天气下,不仅要保证空气湿度,做好花的防晒措施也很重要。 [图片]1、防晒网 拉防晒网是花友们最常用的防晒措施,而且几乎所有花卉都适用。 夏天逐步逼近,家里有养护多肉的朋友可以行动起来了,暴晒后的多肉简直是惨不忍睹。 2、遮阳布或遮阳伞 遮阳布和遮阳伞也可以用来给花防晒,不过遮阳布(或伞)的遮光度比较高,介意的朋友可以选择遮阳网。 家里有吊竹梅、绣球花这样喜欢半阴的花卉,可以动手干起来了! 开风扇吹空调 高温闷热的天气,你坐在沙发吃西瓜的时候,可别忘了自己的花也要通风降温啊! [图片]1、开风扇 许多朋友家里都是封闭阳台,容易闷热不透风。这个时候就需要风扇的帮助了。开风扇有助于给环境降温,还可以加强通风。 放在阳台的朋友可以选择太阳能风扇,靠太阳光就能运转,不花钱还能给花降温! 2、吹空调 当然,土豪的花友可以选择给花开空调~ 不过,避免将花放在空调通风口直吹,否则,很容易失水。
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Miss Chen
2018年05月18日
Miss Chen
Description: This herbaceous perennial plant has an erect flowering stalk about 8-16" tall. Toward the lower middle of this unbranched stalk, there is a single pair of opposite leaves. These leaves are nearly sessile, oval-cordate, coarsely crenate or dentate along the margins, and often shallowly 3-lobed; they are about 2" long and 1¼" across. The flowering stalk is slender, light green, and pubescent. At the base of the plant, there are basal leaves on long petioles. Except for their petioles, they resemble the pair of opposite leaves. The inflorescence is an erect raceme; each flower is widely spaced from the others along the stalk. The pedicels of these flowers are quite short. Each white flower is a less than than ¼" across; it consists of 5 white petals, 10 yellow stamens, a pair of styles, a greenish white calyx with 5 short lobes, and a single-celled ovary. The petals are deeply pinnatifid, which provides them with a fringed appearance. The blooming period occurs from mid- to late spring. After the blooming period, each flower is replaced by an open capsule that contains many small seeds. These seeds are distributed by raindrop logistics (raindrops striking the capsule cause it to bend and fling some of its seeds). The root system can produce vegetative colonies from rhizomes. Cultivation: The preference is dappled sunlight during the spring, otherwise shade is tolerated. Bishop's Cap is usually found in mesic to dry areas of woodlands where the soil contains abundant organic matter, often where there is rocky ground. Most growth and development occurs during the spring when the soil is normally moist. Range & Habitat: The native Bishop's Cap occurs occasionally in northern, east-central, west-central, and hilly areas of southern Illinois; in many central and south-central areas of the state, it appears to be absent (see Distribution Map). Habitats include upland woodlands, wooded slopes, rocky bluffs, and shady ravines. The substrate of the rocky woodlands where this species occurs can consist of either limestone or sandstone. This species is usually found in high quality woodlands. [图片]Faunal Associations: The flowers are pollinated by Syrphid flies and small short-tongued bees (including Halictid bees and Little Carpenter bees). These insects suck nectar from the flowers; the Syrphid flies also feed on the pollen, while the short-tongued bees collect pollen for their larvae. Aside from these insect visitors, little appears to be known about floral-faunal relationships for this species. Photographic Location: A rocky wooded slope at Shades State Park in west-central Indiana. Comments: The small delicate flowers are very attractive and fairy-like. Bishop's Cap can be distinguished from other similar wildflowers by the fringed appearance of its flower petals and the pair of nearly sessile leaves on its flowering stalk.
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Miss Chen
2018年05月18日
Miss Chen
Description: This small vine is slightly woody, forming a low mat of evergreen leaves up to 4" tall and 1' or more across. The stems are mostly light green to light brown and either glabrous or hairy; old stems become brown, smooth, and woody. Pairs of opposite leaves occur along these stems on short petioles up to ¼" long. The leaves are ¼-1" long and similarly across; they are oval to orbicular in shape and smooth to slightly undulate along their margins. The upper leaf surface is glabrous, shiny, and mostly dark green, although it is often nearly white along the central vein and some of the lateral veins. The lower leaf surface is glabrous and more pale. Pairs of upright flowers occur at the tips of branches or from the axils of leaves. Each flower has a hairy white corolla about ½" long, 4 stamens, and a pistil with single style. Each pair of flowers share the same short-tubular calyx. The corolla is trumpet-shaped with 4 spreading lobes, while the calyx is light green with tiny teeth along its upper rim. There are 4 filiform stigmata per style. There are two types of flowers: those with long stamens and short styles, and those with short stamens and long styles. However, only one type of flower can be found on any individual plant. The blooming period occurs from late spring to mid-summer. The flowers are fragrant. As a result of the fusion of their ovaries, each pair of fertile flowers is replaced by a single berry. The berries are bright red, subgloboid inDistribution Map shape, and up to 1/3" (8 mm.) across. Toward the tip of each berry, there is a pair of shallow dimples. The berry interior is fleshy and rather tasteless, containing up to 8 seeds. The berries can persist throughout the winter and into the spring of the following year. The root system is fibrous. Adventitious fibrous roots can develop when the prostrate stems have contact with moist soil. Cultivation: The preference is light shade to partial sun, moist to dry-mesic conditions, and an acidic soil containing sand or rocky material (e.g., sandstone). Partridge Berry is not aggressive and it can be difficult to establish. However, it can be cultivated in a partially shaded rock garden where the soil is shallow and competition from other plants is restricted. Flowers and fruits are sparingly produced. Range & Habitat: The native Partridge Berry occurs occasionally in NE Illinois and southern Illinois, while in the rest of the state it is uncommon or absent. This small vine is distributed across a wide area of eastern North America. Habitats include rocky upland woodlands, sandy savannas, slopes of wooded sand dunes, sandstone cliffs, sandstone ledges along ravines, mossy boulders in wooded ravines, rocky river banks, edges of Red Maple swamps, and bogs. Partridge Berry is found in high quality natural areas. Faunal Associations: The flowers are cross-pollinated by bumblebees (Hicks et al., 1985). The primary floral reward for these insects is nectar. Apparently very few insects feed on the foliage of Partridge Berry. Some upland gamebirds feed on the fruits of this vine, including such species as the Ruffed Grouse, Bobwhite Quail, Wild Turkey, and the now extinct Passenger Pigeon (Martin et al., 1951/1961; Bennetts, 1900; Schorger, 1955). Mammals that feed on the fruits include the Red Fox, Eastern Skunk, Eastern Chipmunk, White-Footed Mouse, and Woodland Deer Mouse (Martin et al., 1951/1961; Hamilton, 1941). These animals spread the seeds of the berries to new locations. [图片]Photographic Location: A shaded sandstone ledge along a river at the The Potholes in west-central Indiana. Comments: This is the only species of its genus in North America. Partridge Berry has ornamental foliage, flowers, and berries. It can distinguished from other woody vines by its small size, pairs of showy white flowers, and long-lasting red berries. Another common for this species is Twinberry.
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