protophylln.
/ˈprəʊtə(ʊ)fɪl/, U.S. /ˈproʊdəˌfɪl/ Botany.
In a clubmoss: a primitive leaf-like structure produced on the upper surface of the protocorm or tuber.
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the world > plants > particular plants > moss > [noun] > club-moss or moss-like ferns > parts of
powder1672
oophoridium1847
oophorid1848
oosporangium1857
macrosporangium1862
rhizophore1875
megasporangium1886
megasporange1889
protophyll1891
prophyll1971
1891 F. O. Bower in Proc. Royal Soc. 50 267 The sporophyte [of Phylloglossum] consists of two parts:—(i) the protocorm, with its protophylls and roots, and (ii) the strobilus.
1938 G. M. Smith Cryptogamic Bot. II. vii. 180 From the upper surface of the protocorm arise a few to many erect, conical outgrowths (protophylls) which are leaf-like in function.
1992 Ann. Missouri Bot. Garden 79 683/1 In this subfamily..the first leaves are actually ‘protophylls’ rather than small versions of microphylls.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).
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n.1891