. Botany for high schools and colleges. Botany. DAPHNALBS. 491. Fia. 392. Fia. 393. Bcehmeria nivea. tlje China Grass or lianiie, a perenuial herbaceous plant, may fairly rival Flax in the fine and durable fibres it produces. It has been introduced into the Southern United States and California. There is still some difficulty in separating the fibres from the woody portions of the plant, and this has prevented its more extensive use. The Stinging Nettles include ten geieia, of which the most impor- tant are Urtiea, which includes our common species, and Laportea, represented by our Wood Nettle
. Botany for high schools and colleges. Botany. DAPHNALBS. 491. Fia. 392. Fia. 393. Bcehmeria nivea. tlje China Grass or lianiie, a perenuial herbaceous plant, may fairly rival Flax in the fine and durable fibres it produces. It has been introduced into the Southern United States and California. There is still some difficulty in separating the fibres from the woody portions of the plant, and this has prevented its more extensive use. The Stinging Nettles include ten geieia, of which the most impor- tant are Urtiea, which includes our common species, and Laportea, represented by our Wood Nettle ; to the latter belongs the Tree Nettle L. gigas, of Australia, which reaches a height of Irom fifteen to forty metres (50 to 130 ft.), and whose sting is so severe as to produce dau- (jerous results. Figs. 392-7.—Illustratioss of Uiitica urens. 577. — Cohort IX. Baphuales. Mostly shrubs or trees, with moiio- clinous flowers ; ovary sui^erior, one-celled, with a single seed con- taining no endo- sperm. Order Protea- cese.—A family of about 1000 species, confined almost en- tirely to the South- ern Hemisphere, and occurring in greatest abundance in A us- tralia and Soutli Africa. Many spe- cies, especially of the genus Banksia, are cultivated in conservatories. A few furn sh valua- ble timber. Grevillea robusta, the Silk Oak of Australia, attains a height oi twenty-four to thirty metres (80 to 100 ft.), with a diamett-r of two metres or more, and supplies valuable timber. Knightiaexcelsa is a valuable New Zt aland timber tree tliirty metres (100 ft.) or more in height. Leueadendron argenteum, the Silver Tree of the Cape of Good Hope, has silvery lanceolate leaves; its wood is much used for fuel. Protea grandiflora, the " Wagen-boom " of the same region, is used by wheelwrights in the manufacture of wagon wheels. Order Elseagnacess.—A small order, of sixteen species, of trees or. Please note that these images are extracted from scanned page images that may have
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