ASPlENIE^i. liii. 



the receptacles opposite, on the lower parallel portions of proxi- 

 mate Tenules. Indiisiwm linear, plane, membranaceous, opening 

 (in each pair) on the side towards the connivent opposite sorus. 

 Veins forked from a central costa ; venules parallel and soriferous 

 below, anastomosing near the margin in elongated unequal hexa- 

 gonal areoles ; the marginal angles emitting short free veinlets. 



Fronds simple herbaceous. Rhizome short, erect. This genus 

 is known by its comparatively regular oppositely-placed sori, 

 analogous to those of Scolopendriwm. 



Ex. : A. brasiliensis (Asplenium, Sw. ; A. repanda, Presl.J 



A. plantaginea, Pr. (Asplen. Douglasii, H k. ; Camptosorus rumicifo- 

 lius, Lk .) 



70. SCHAFFNEBIA, Fee, in litteris (1856) ; Id. Icon. 



Nouv. t. 17, fig. 1, (ined.) 



Sori indusiate, linear, unequal, scattered; the receptacles 

 opposite and face to face on the sides of the areoles, sometimes 

 connivent. Indusia linear, membranaceous ; those within the 

 same areoles opening face to face. Veins radiately-forked ; the 

 venules anastomosing in several series of unequal elongated 

 areoles, the sides of which are soriferous ; marginal areoles small 

 and obovate. 



Fronds simple, distinctly stipitate, rotundly flabellate or obo- 

 vate, sometimes broader than long. Ehizome short, erect. A 

 very remarkable plant, with a distinct stipes as long as the 

 radiately-veined fronds, which are generally quite abrupt at the 

 base, or obtusely wedge-shaped. The sori are irregular in their 

 disposition, but following the veins, are more or less radiately 

 disposed. 



Ex.: S. nigripes, Fie MS. (Mexico, SchaffnerJ 



71. CAMPTOSORUS, Link, Sort. Ser. ii. 69. 



ASFLEim sp., Linnaeus : ANTIGBAMMATIS sp., J. Smith. 



Sori indusiate, linear or oblong, scattered, often solitary in 

 the costal areoles and on the marginal venules ; usually connivent 

 in irregular unequal pairs, face to face, on the adjacent venules of 

 the secondary areoles ; the receptacles seated on the sides of the 



