JOHN E. HOLLOWAY; The Gametophyte, Embryo, and Young Rhizome of Psilotum triquetrum Swartz, Annals of Botany, Volume 3, Issue 2, 1 April 1939, Pages 313–336, ht
No takes yet. Share an insight, caveat, or question.
John Holloway (1939) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: