BOOK-NOTES, NEWS, ETC. 117 



Gardeners' Chronicle (2 Feb.). — Phajm tuberculosus (fig. 31). — 

 (9 Feb.). J. Weathers, CynorcMs purpurascens (fig. 37). — (16 Feb.). 

 J. Hoog, Iris paradoxa var. Choschab (fig. 45). — J. Weathers, 

 Impatiens (jrandiflora (fig. 47). 



Malpighia (xvi. fasc. 5-8; dated 1900, received 21 Feb.). — 

 T. Ferraris, ' Flora Micologica del Piemonte.' — G. Cecconi, ' Con- 

 tribuzione alia conoscenza delle galle.' — 0. Mattirolo, * Fungi hy- 

 pog^i.' — L. Montemartini, ' I nodi delle Graminacee.' — S. Belli, 

 • Le Festuche italiane.' — G. B. Petrucci, ' Richerche anatomiche 

 sopra la ChannBrops hiunilifi,' etc. (6 pi.). — E. Mastel, ' Unita mor- 

 phologica del fiore delle Crociflore.' 



Oesterr. Bot. Zeitschrift (Feb.). — V. Schiffner, ' Uber Morchia 

 und Calyicidaria.' — S. Prowazek, ' Pohjtoma ' (1 pi.). 



Bhodora (Feb.). — C. S. Sargent, 'Notes on Cratceijus: — E. 

 Brainerd, Scirpus atratus = -S'. Peckii. 



BOOK-NOTES, NEWS, dc. 



At the meeting of the Linnean Society on Jan. 17th, Mr. C. T. 

 Druery exhibited a supposed hybrid between Ceterach ofjicinarum 

 and Scolopendrium vulgare, which he had received from Mr. E. J. 

 Lowe. The fronds were of somewhat foliose Ceterach form, but 

 entirely devoid of scales, and with the upper third confluent, 

 resembling the tip of a Scolopendrium-hond, the fructification 

 partly Scolopendroid and partly Asplenoid. From this combi- 

 nation of characters, the exhibitor considered the plant to be a 

 true hybrid between the species named. Mr. C. H. Wright ex- 

 hibited numerous herbarium specimens of Scolopendrium vulgare, 

 Ceterach ojficinarum, Asplenium marinum, A. Hemionitis (ipalmatunt), 

 and Scolopendrium nigripes, by which last three species it was 

 demonstrated that sori in faced pairs {Scolopendrium type) may 

 not only appear on species classed as Asplenium, but that, on the 

 other hand, simple Asplenoid sori may exist on species classed as 

 Scolopendrium (e.g. S. nigripes and A. Hemionitis). Mr. Wright 

 was inclined to the opinion that the presumed hybrid was merely a 

 form of A. marinum, basing his opinion partly on the leathery 

 nature of both S. vulgare and Ceterach fronds as contrasted with 

 the thin papery texture of the exhibits. He entered at some length 

 into the various modes of attempting cross-fertilization in Ferns ; 

 but the factors of uncertainty are so difficult to eliminate, that, 

 until some delicate means have been devised for the actual trans- 

 ference by hand of individual autherozoids to alien archegonia, 

 hybridity in Ferns can hardly be scientifically proved. Mr. Druery, 

 in reply, considered that the Kew examples demonstrated that a far 

 closer alliance existed between S. vulgare and the Asplenia than 

 appeared on the surface, the presumed generic line between the 

 forms of fructification being broken through, and hence the possi- 

 biUty of hybridizing. He also pointed out that, as A. marinum had 



