. The book of choice ferns for the garden, conservatory. and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates amd numerous wood engravings. Identification; Ferns. CHAPTER XLIV. NOTHOCHLi^^NA, R. Brown. (JSToth-och-lEe'-na.) Gold and Silver Maidenhair HE name of this genus is frequently but incorrectly spelt Nothocloena; it is derived from nothos, spurious, and chlaitia, a cloak, on account of the covering of the spore masses with which some species appear to be provided. Not
. The book of choice ferns for the garden, conservatory. and stove : describing and giving explicit cultural directions for the best and most striking ferns and selaginellas in cultivation. Illustrated with coloured plates amd numerous wood engravings. Identification; Ferns. CHAPTER XLIV. NOTHOCHLi^^NA, R. Brown. (JSToth-och-lEe'-na.) Gold and Silver Maidenhair HE name of this genus is frequently but incorrectly spelt Nothocloena; it is derived from nothos, spurious, and chlaitia, a cloak, on account of the covering of the spore masses with which some species appear to be provided. Nothochlce7ia, which in Hooker and Baker's "Synopsis Filicum" is Genus 50, forms an important part of the tribe Grammitidea?. The plants are closely related to Cheilanthes, from which they dilFer only by the absence of a distinct involucre, and with whi^h they are connected by gradual intermediate stages. The genus is divided into Nothochlasna proper, with fronds densely matted beneath, and Cincinalis of Desvaux, the fronds of which are coated on their under-side with white or yellow powder. The learned Dr. Fee, in speaking of this coloured powder, says : " L'exudation jaune, blanche, ou rose qui couvre la lame inferieure de ces plantes est de nature ceracee, et cette sorte de cire vegetale et soluble dans I'alcool et I'ether. Elle est produite par des glandes en massue et presente sous le microscope I'aspect de petits filaments d'une tenuite extreme"* (Eaton, "Ferns of North America," i., p. 67). The plants belonging to this genus are widely dispersed, some being found in Southern Europe, in North and South America, in China, in * " The yellow, white, or pink exudation which covers the under-surface of the fronds of these plants is of a ceraceouB (waxy) nature, and this sort of vegetable wax is soluble in alcohol and in ether. It is produced by club-shaped glands, and presents, under the microscope, the aspect of small filaments of great tenuity
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectferns, bookyear1892
