GENEBA OF PEEKS i 



short spike of fructification. This curious little genus is the 

 link uniting Lycopodium with Ophioglossum, having the pedun- 

 culate spike of O. Eergianum, with the fructification of a 

 Lycopodium. 

 Ex. : P. Drtunmondii, Eze. 



2 

 (a) Fructifications consisting of antheridia only, 



* Spore-cases one-celled. 



178. LYCOPODIUM, Linnaeus, Gen. Plant. 792 (reduct); 

 Spring, Mon. Lycopod. i. 17. 



SBLAGO, Dillenius ; HOTEEZIA, Sernhardi ; DIDTCLIS, Palisot de Seau- 

 vais ; LEPIDOTIS, Palisot de Seauvais ; PLANAITTHUS, Palisot de Seau- 

 vais; CHAMSCLIKIS, Xfartiw; DIPHASHJM, Presl. 



Spore-cases (antheridia) one-celled, two-valved, opening by a 

 transverse vertical cleft, reniform; sessile and solitary in the axils 

 of the leaves, or of bracts collected into spikes of fructification . 

 Spores numerous minute, globosely-tetrahedral. 



Moss-like terrestrial or epiphytal plants, with leafy stems, 

 simple or branched, erect or pendulous ; the leaves nearly uni- 

 form, and disposed in from eight to sixteen, rarely in about four 

 rows, on the stems ; the fructification sometimes occupying the 

 axils of the upper leaves, sometimes those of bracts collected into 

 terminal or lateral sessile or pedunculate cone-like cylindrical 

 spikes. This genus differs from Selaginella, in having but one 

 kind of spore-case, that called an antheridium ; it also differs 

 in having the leaves nearly uniform, and usually disposed in many 

 rows equally around the stem. 



Selago. Antheridia scattered in the axils of the leaves. 



Ex.: L. Selago, Lin. 



L. serratum, Thunb. 

 L. dichotomum, Jacq. 

 L. funiforme, Cham. 



L. reflexum, Lam. 

 L. ulicifolium, rent. 

 L. gnidioides, Lin. 

 L. verticillatum, Lin. 



Lepidotis. Antheridia in the axils of bracts collected into spikes. 



Ex. : L. Phlegmaria, Lin. 

 L. inundatum, Lin. 

 L. alopecuroides, Lin. 

 L. dendroideum, Mich. 

 L. carolinianum, Lin. 

 L. Jussicei, Desv. 



lossoides, Lam. 

 um, Li* 



L. ophiogli 



L. annotin 



L. clavatum, Lin. 



L. complanatum, Lin. 



L. cernuum, Lin. , 



L. laterale, X. Sr, 



