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Jubaea(after Juba, king of Numidia) Palmaceae. The wine palm of Chile, J. spectabilis, which in this country is cultivated outdoors in southern California and in the North under glass.
Jubaea has only 1 species, a tall, unarmed S. American palm: caudex thick, covered with the bases of the sheaths: lvs. terminal, pinnatisect; segms. spreading, linear-lanceolate, rigid; margins recurved; rachis laterally compressed, convex on the back, acute beneath; sheath short, open. Allied genera in cult, are Attalea, Cocos, Maximiliana and Scheelea, which are distinguished chiefly by the staminate fls. In Jubaea the petals are lanceolate; stamens numerous, included, the anther-cells connate: fr. 1-seeded. In Attalea the petals are lanceolate; stamens 10-24, included, anther-cells connate: fr. 2—6-seeded. For distinctions from other genera consult also Cocos, Maximiliana and Scheelea.
Jubaea spectabilis is a handsome and satisfactory palm for the cool palm-house, where it would be treated in common with such plants as Chamaerops humilis, the sabals and Euterpe montana, which may be grown well in a night temperature of 50°, providing the plants are properly established. In general appearance, J. spectabilis reminds one of some kinds of Phoenix, and, like them, does not show the true character of its foliage in a very small state, the seedling jubea producing several simple leaves before developing foliage of the pinnate type. In Jubaea, however, the lower pinnae do not revert to spines, as is usually the case with Phoenix and the pinnae are also arranged irregularly on the midrib, thus giving the fronds a feathery effect. The culture of jubea is by no means difficult, propagation being effected by means of imported seeds, which usually give a fair percentage of germination, providing they are started in a warmhouse and kept moist. The seedlings should be potted as soon as the second leaf appears, and kept in a warmhouse until they are large enough for a 4-inch pot, and from this time forward cooler treatment will give the best results, always remembering the fact that while many palms (and jubea among the number) will bear much neglect, yet the best results are to be had only by giving plenty of nourishment. (W. H. Taplin.)
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It is a very impressive palm reaching heights of 25 m with a massive trunk up to 1.3 m diameter at the base, often thicker higher up, and with smooth bark. The [[leaf|leaves]] are pinnate, 3-5 m long. The largest indoor plant in the world is the Jubaea chilensis at [[Royal Botanic Gardens, Kew|Kew]], England.
It is a very impressive palm reaching heights of 25 m with a massive trunk up to 1.3 m diameter at the base, often thicker higher up, and with smooth bark. The [[leaf|leaves]] are pinnate, 3-5 m long. The largest indoor plant in the world is the Jubaea chilensis at [[Royal Botanic Gardens, Kew|Kew]], England.
It needs mild winters, but will tolerate frosts down to about −15 °C, making it one of the [[hardy palms|hardiest]] of pinnate-leaved palms; it will also tolerate relatively cool summers. In the wild, the tree lives almost exclusively on the steep slopes of ravines.
It needs mild winters, but will tolerate frosts down to about −15 °C, making it one of the [[hardy palms|hardiest]] of pinnate-leaved palms; it will also tolerate relatively cool summers. In the wild, the tree lives almost exclusively on the steep slopes of ravines.
