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 BOTANY Blasia pusilla, Linn. Trembath, Chy-an-hal, Trungle Moor, Madron, Gurnard's Head Metzgeria furcata, Linn. Penzance var. asruginosa, Hook. W '.C. Aneura *ambrosioides, Nees bipinnata, Mitt. Mousehole multifida, Dum. Mousehole, W.C. pinguis, Dum. Hayle, Land's End Lunularia vulgaris, Mich. Castle Horneck, Trengwainton (in fruit) Reboulia hemisphasrica, Raddi. Paul Hill, Chyune Hill Fegatella conica, Tayl. Hayle Riccia glauca, Linn. W.C. tagel Anthoceros *lasvis, Linn. Stable Hobba, Trungle Jungermannia crenulata, Sm. Rcdruth, Chacewater, Marazion Marsh gracilis, Schleich. Penzance inflata, Huds. Truro, Marazion Marsh pumila, With. Truro, Helston quinquedentata, Carr. & Pears. Truro, Penzance riparia, Dum. Carbis Bay, St. Ives turbinata, Raddi. Hayle Causeway, Lelant Bay ventricosa, Dicks. Redruth, Penzance Saccogyna viticulosa, Dum. Trevayler Nardia emarginata, Carr. Newlyn Cliff Scalia Hookeri, Carr. Chy-an-hal Moor Fossombronia *angulosa, Raddi. Trelissick, Kymyal Cliff, Mousehole (in fruit), Lamorna, Hayle, Land's End Petalophyllum *Ralfsii, Gottsche. Near Phillack and near St. Erth, Gwithian Pellia calycina, Nees. Marazion, Newlyn Cliff Pallavicinia*hibernica, Hook., var. Wilson- iana, Gottsche. Near Phillack, Hayle Sands MARINE The earliest contributor to a knowledge of the Marine Algas of Corn- wall was probably Mr. J. Stackhouse of Pendarves, who, at the end of the seventeenth century published a work on Marine Alga? entitled Nereis Britannica, containing numerous illustrations. It is stated in the Biblio- theca Cornubiensis that Mr. Stackhouse built Acton Castle for the purpose of pursuing his researches on Marine Algae, and he was probably the first to experiment on the propagation of alga? from their spores. In the early part of the last century Miss Warren of Flushing paid much attention to this group of plants, and sent many specimens to the late Professor Harvey of Dublin, whose Phycologica Britannica still remains the classical work on British Marine Algae. Desirous of recognizing the valuable assistance he received from her he honoured her name by giving it to a species which he believed to be new, viz. Schizosiphon Warreniae, but which, unfortunately, owing to the recently accepted laws of priority of nomenclature, has been altered to Rivularia Biasolettiana, Menegh., a name previously given to it by an Italian botanist. Dr. Herman Becker, F.L.S., also studied the marine flora of Cornwall and added to it the very rare Desmarestia Dresnayi, Lamour, which he dredged off the Lizard in December 1864. In more recent years Dr. W. P. Cocks, late of Plymouth and Falmouth, and the Rev. W. S. Hore explored that portion of Cornwall between Mount Edgcumbe and Saltash. Mr. Henry Goode worked the same district and also the neighbourhood of Penzance in west Cornwall, where he was fortunate enough to meet with the rare Carpomitra Cabrerce and Stenogramme interrupta, thrown up after storms. Mr. F. W. Smith for many years collected marine alga? at Falmouth, but unfortunately did not examine them microscopically, i 81 ii
 * bifurca, Hoffh. Penzance
 * ciliifera, Link. Trebarwith near Tin-
 * glaucescens, Carr. Newlyn Cliff
 * sorocarpa, Bisch. Chyune Grove, Paul
 * tumida, Link. Penzance
 * punctata, Linn. W.C.
 * hyalina, Spruce. Lower Ninnes, Madron