4i70 CXLIII. FILICES. 



Suborder 7. Ophioglossese. 



A^ernation erect. Ca])sule8 deeply 2-valvcd, without any 

 ring, opening down the side nearly to the base. 



37. OPHIOGLOSSUM, Linn. 



Capsules sessile, arranged in 2 rows, so as to form a dense 

 spike. — Pap2)Gand Bawson,p. 4:7 ; Hook, and Baker, Sj/n. Ml. 

 2?. 4i4. 



3 Cape species, 1 a form of the cosmopolitan O. rulgafum, and 1, which 

 is confined to the Cape and very rare, forming tliesect. Rhizoglossum, Presl, 

 characterized by having the barren and fertile fronds distinct. 



Okder CXLIV. LYCOPODIACE^. 



Capsules sessile in the axils of the leaves, deeply 2- or 3- 

 yalved, 1-3-celled, without a ring, uniform or of 2 kinds ; when 

 of 2 kinds, 1 is larger than the other, and contains 3 or 4 

 large spores (macrospores) ; the smaller capsules, or all of 

 them if of one kind only, containing a large mass of minute, 

 dust-like spores (microspores). — Leaves uniform and imbri- 

 cated all round the stem, or of 2 kinds, arranged in fours, the 

 smaller pair adpressed to the stem, and the larger spreading 

 from it in a single plane. Capsules dispersed amongst the 

 leaves down the stem or confined to a few of the upper leaves, 

 which are then often different from the others and form a sort 

 of cone. 



1. LYCOPODIUM, Linn. 



Capsules and spores all of one kind, the former 2-valved 

 and 1-celled; the leaves usually equal and spreading uni- 

 formly. — Pappe and Mawson (in part), p.. 48. 



Species 6 ; the leaves in all spreading uniformly. 



2. SELAGIWELLA, Spring. 



Capsules and spores of 2 kinds, the former 2-valved and 1- 

 celled, aggregated in terminal heads. Leaves usually of two 

 forms and sizes, the larger pairs spreading distichously. — Ly- 

 copodium, Fappe and Bawson {in part). 



4 Cape species, in 2 of which the leaves spread uniformly. 



3. PSILOTUM, Swartz. 



Capsules 3-celled, 3-valved. Leaves minute, rigid and very 

 much scattered. — Bappe and Bawson, p. 50. 



A single, widely -diffused, tropical species (P. triquetrum), reaches Natal. 



