332 FERNS : BRITISH AND FOREIGN. 



Marattia, in honour of J. F. Maratti, of Tuscany, who wrote 



011 ferns. 



Marsilea, in honour of Count L. F. Marsigli, of Bologna. 

 Meniscium, meniskos, crescent ; shape of the fructification. 

 Mesochlaena, mesos, middle, chlcena, a cloak ; attachment of the 



indnsium. 



Microlepia, mikros, small, lepis, scale ; the indusium small. 

 Microsorum, mikros, small; small sori. 

 Microstaphyla, mikros, small, staphyle, a bunch; the fertile 



frond being like a little bunch. 



Mohria, in honour of D. D. Mohr, a German botanist. 

 Myriopteris, myrios, myriad, pteris; the frond being divided 



into a number of small parts. 



Neottopteris, neottia, nest, pteris ; bird*s-nest fern. 

 Nephrodium, nephros, kidney ; form of the indusium. 

 Nephrolepis, nephros, kidney, lepis, scale; the indusium being 



kidney-shaped and scale-like. 



BTeurocallis, neuron, a nerve, kallos, beautiful ; the venation. 

 JSTeurodium, neuron, nerve ; the venation. 

 Niphobolus, niplws, of snow, lolos, a large pill ; the under side of 



the frond densely covered with white scales, snow-like and 



the round sori. 



Niphopsis, niplws, of snow, opsis, like ; like niphobolus. 

 ]STotholsena, nothos, spurious, chlcena, cloak; the imperfect 



indusium. 



Ochropteris, ochros, pale ; pale fern. 



Odontosoria, odontos, of a tooth, sori ; the sori-like teeth. 



Oleandra, resemblance to Nerium Oleander ; the Oleander. 



Olfersia, in honour of Professor Olfers, a celebrated astro- 

 nomer. 



Onoclea, onos, a vessel, kleio, to enclose ; the rolled-up 

 fertile segments of the frond. 



Onychium, onychion, a little nail ; resemblance to the fertile 

 segments of the fronds. 



Ophioglossom, ophios, of a serpent, glossa, tongue ; the spikes 

 of fructification. 



Osmunda, Osmunder, one of the names of Thor, a Celtic 

 divinity. 



Paragramma, para, near to, gramma, a line ; the sori in short 



lines parallel with and close to the margin. 

 Pellaea, pellos, dark- coloured ; the dusky colour of the fronds. 

 Phegopteris, phegos, beech ; beech fern, by some called sun fern. 



