68 103. SELAGtNELLA. A'. MONOSTELICAE. Sl". RADICANTES. 



A A Macrospores 4 in a macrosporangium, with the apex 

 provided with 3 radiating ribs. 

 O Lateral leaves without spurious veinlets. 



Intermedial leaves of the principal rachises 



with the produced basal auricle, if present, 



not incurved. (20) S. Dielsii. 



(X) Intermedial leaves^ of the principal rachises 



with the produced basal auricle hamate- 



incurvate. (21) S. lonko-batu. 



O O Lateral leaves provided with spurious veinlets 



consisting of rotvs of sclerotic cells. 



(22) S. atroviridis. 



(23) S. sumatrana. 

 4.4. Lateral leaves more distinctly ciliate, at least on one side 



at the base ('). 



&. Intermedial leaves of the main stem not ciliate, at 

 best minutely denticulate. (24) S. sarawakensis. 



5.5. Intermedial leaves of the main stem ciliate or ciliolate, 

 at least on one side at the base. 

 «. Lateral leaves of the main stem rather close. 



(25) S. auriculata. 

 e.6. Lateral leaves of the main stem rather spaced. 



(26) S. longaristata. 



(8) S. uncinata, Spring, Mon., II, 109; Bk., Fern All., 48; S. 

 caesia, hort.; Lycopodium uncinatum, Desv., Enc. Bot., Suppl. Ill, 558; 

 L. caesium, hort. 



Shoots caespitose, trailing to a length of 30 — 60 cm., often dichotomous 

 from the base, with a long-excurrent, caudiform tip and alternate, short, 

 pinnately arranged, compound, pinnato-dichotomous, more or less ascending 

 or spreading branches, the stem slender, pale-stramineous, 2-sulcate down 

 the face; ultimate branchlets 4—6 mm. broad. Leaves dimorphous, firm, 

 the lateral ones crowded on the branchlets, very remote on the stem, 

 horizontal, bright-green, blue-iridescent on the upper side, ovate-oblong, 

 2 — 8 mm. long, Vz — Va as broad, subacute, entire, subequilateral, pellucid- 



(>) See also (19) 8. Springlana v. A. v. R. 



