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单词 melocactus
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Melocactusn.

Brit. /ˌmɛlə(ʊ)ˈkaktəs/, U.S. /ˌmɛləˈkæktəs/
Inflections: Plural melocacti, melocactuses.
Forms: also with lower-case initial.
Origin: A borrowing from Latin. Etymon: Latin melocactus.
Etymology: < post-classical Latin melocactus (C. Bauhin Pinax (1623) 5) < post-classical Latin melo melon n.1 + cactus cactus n.
A genus of Central and South American cacti which are often hemispherical in shape, and prominently ribbed, with the flowers borne on a woolly terminal structure; (also melocactus) a cactus of this genus (also called melon-cactus, melon-thistle, Turk's cap).Valid publication of the genus name: H. F. Link and C. F. Otto Ueber die Gattungen Melocactus & Echinocactus (1827) 5.
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the world > plants > particular plants > cactus and allies > [noun] > melon-cactus
pope's head1699
melon thistle1725
Turk's head1725
Melocactus1731
Turk's cap1731
melon-cactus1845
1731 P. Miller Gardeners Dict. I Melocactus,..Melon-Thistle.
1836 J. Lindley Nat. Syst. Bot. (ed. 2) 54 It is not easy to say what the habit is of an order which comprehends such plants as the leafy Pereskias, the cord-like Rhipsalis, and the lumpish Melocacti.
1853 T. Ross tr. A. von Humboldt Personal Narr. Trav. Amer. III. xxvi. 114 The agaves and melocactuses half-buried in the sand.
1871 C. Kingsley At Last I. i. 34 We saw our first Melocactus, and our first night-blowing Cereus creeping over the rocks.
1910 Encycl. Brit. IV. 925/2 The Melocacti are distinguished by the distinct cephalium or crown which bears the flowers.
1944 S. Putnam tr. E. da Cunha Rebellion in Backlands i. iv. 34 The monkshoods, inelegant and monstrous melocacti,..with thorny buds that converge above in an apex formed by a single bright-red flower.
1974 Encycl. Brit. Micropædia VI. 774/1 Melocactus species are also called melon-cacti for their size and shape.
1993 Taxon 42 458 Boehmer's description of Melocactus appears to have been based on a Mammillaria, rather than a Melocactus.
This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022).
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n.1731
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