| 释义 |
Nostoc Bot.|ˈnɒstɒk|
Also 7–8 nostoch, 8 -ock.
[A name invented by Paracelsus.]
A genus of unicellular Algæ, having the cells arranged in rows which intertwine with each other and form a gelatinous mass; esp. the ordinary species of this, Nostoc commune, formerly believed to be an emanation or deposit from the stars.
1650Charlton tr. Van Helmont's Paradoxes Transl. Suppl. 98 Nostoch understandeth the nocturnall Pollution of some plethoricall and wanton Star, or rather excrement blown from the nostrills of some rheumatick planet,..in consistence like a gelly, and so trembling if touched. 1650J. French Chym. Dict., Nostoch is that which we call a falling star, a kind of gelly or slime found oftentimes in the Summer in fields, and meadowes. 1701–2De La Pryme Let. in Diary (Surtees) 247 A bottle of Nostock..called Star Slough, or Star Shot Gelly,..a substance that falls from the starrs. 1753Chambers Cycl. Suppl., Nostoch, the name of a vegetable substance which seems to differ from most of the other bodies of that kind, in several particulars. 1834W. Macgillivray Lives Zoologists 208 This phlegm is a vegetable called nostoc. 1843Penny Cycl. XXVII. 805/2 The species of Nostoc are found on damp earth, as well as in sea and fresh water. Most of them are gelatinous,..and shrink almost to nothing in drying. 1895Vines Text-bk. Bot. iii. 234 Nostoc is constantly found in the tissue of certain Hepaticæ.
attrib.1872–3W. Archer in Grevillea I. 23 Fibres, from which break forth, through the ‘Nostoc-jelly’, the first root hairs. 1874–5H. Wood ibid. III. 43 The development of the distinguishing threads of the Collema out of the ordinary Nostoc-cell. 1892Syd. Soc. Lex. s.v. Nostoc commune, Nostoc colonies occur as pseudoparasites in the intercellular spaces and cavities of other plants.
b. An individual plant of this genus.
1851Harvey Nereis Boreali-Amer. 19 Nothing can well be less star-like than a Nostoc, as it lies on the ground. 1882–4M. C. Cooke Brit. Fresh-Water Algæ I. 221 Nostocs should be dried as quickly as possible after they are collected.
Hence nostoˈc(h)aceous, ˈnostochine adjs.
1857Berkeley Introd. Cryptogamic Bot. 146 Sometimes..a connecting cell is formed, as in the Nostochine genus Sphærozyga. 1872–3W. Archer in Grevillea I. 25 Such nostochaceous plants as live in moist or wet habitats. |