Plant Inventory -, Issues 61-70

Front Cover
The Department, 1922 - Germplasm resources, Plant
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Page 15 - ... could well be, but it is only when the fruit is opened that its real beauty is seen. The rind is thick and tough and in order to get at the pulp inside, it requires a circular cut with a sharp knife to lift the top half off like a cap, exposing the white segments, five, six or seven in number, lying loose in the cup.
Page 90 - This covering is a fat or tallow, and is removed by steaming and rubbing through a bamboo sieve having meshes sufficiently small to retain the black seeds. The fat is collected and melted ; afterwards it is moulded into cakes, in which state it is known as the " Pi-yu
Page xiii - ... acute or awn-pointed, 5 to 7 nerved, usually very villous.— In maritime sands, Greenland and Labrador to Maine, Alaska to California, and on the shores of the Great Lakes. (Europe and Asia. ) July, August. This grass is one of the best species known for binding drifting sands, and in northern Europe it has been cultivated with beach-grass (Ammophila amwm'a) for this purpose, the two species forming an admirable combination.
Page 9 - ... or manure crop, the sword bean is a well-known human food. The sword bean is commonly cultivated as a vegetable in Japan, India, Burma, Ceylon, Java, Mauritius, and apparently in Africa. In India it is eaten both by the natives and by Europeans, the variety with white seeds being the most esteemed. The young pods are prepared after the manner of snap beans and are well flavored and wholesome. Firminger considers it " about the nicest of all the native vegetables
Page xv - ... annually exported. I have not been able to learn the origin of this variety, which is cultivated only at Jaffa, In form it is very similar to the Malta orange, and it is possible that it is remotely descended from that variety; but it is not a blood orange, despite its marked affinity to that group. The Jaffa orange is one of the largest, larger even than the Washington Navel. Its form is obovate, its skin very thick, and its fruit seedless. The tree is not spiny, and the fruit, therefore, is...
Page 9 - Indian variety with red seeds and red flowers has proved very satisfactory as a cover crop in Porto Rico. Cattle are said to graze on the plant there to a limited extent. The plant will develop full-grown green pods as far north as Washington, DC, but ordinarily the season is not long enough for the seeds to ripen.
Page xix - ... longer than broad, and open into four scales or segments, each having a spur-like knob at its apex, and covering five or six winged seeds. The foliage is of the usual juniper-like description, and the timber is of a dull reddish white colour, of excellent quality and easily worked. The bark on old trees is of great thickness, consisting of layers annually shed and renewed. I selected sections of this valuable timber tree, which I hope to send home with the other Milanji specimens by an early...
Page 37 - This delicious fruit is about the size of a mandarin orange, round and slightly flattened at each end, with a smooth, thick rind, rich redpurple in color, with here and there a bright, hardened drop of the yellow juice which marks some injury to the rind when it was young. As these...
Page 17 - For fifteen years or more the writer has used 0. azarolus as a stock for pears with excellent results. Top-grafted at 2 to 3 feet above the ground, it develops into a very beautiful, productive, and long-lived dwarf tree, provided the grafting is done with a very early variety. This shrub grows in extremely hot, dry places and must therefore complete the greater part of its 'development early in the season. Its roots, therefore, are unable to furnish the sap necessary to develop pears in August....
Page 42 - ... section of the trunk of a young balsa tree, Ochroma lagopus, a squared piece of balsa timber, and an ice-cream container made of this recently developed wood to demonstrate its value as a nonconductor of heat. The utilization of the wood of this quick-growing tropical American tree has been brought into prominence during the last few years. The manufacture of buoyancy and insulation products, such as life rafts, refrigerators, and parts of lifeboats and airplanes, especially in connection with...

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