30 102. LYCOPODIUM. 1. TJROSTACHYS. ai. EUSELAGO. 



f. Leaves rather capillary, to V 2 mm. broad. 



(7) L. verticillatum. 



f .f. Leaves not capillary, Vs mm. or more broad. 

 o. Leaves 3 4-farious, coriaceous. 



(8) L. bolanicum. 

 O.O. Leaves 6 10-farious, or not coriaceous. 



(9) L. setaceum. 



4L. Leaves spreading or deflexed, the higher not rarely 

 ascending. 



&. Plants to 15 cm. long, the leaves to V mm. broad. 



(10) L. Zollingeri. 

 (11) L. Everettii. 



5.5. Plants more than 15 cm. long, or the leaves more 

 than V mm. broad. 

 e. Leaves entire, l /2l mm. broad at the base. 



(12) L. australianum. 



.e. Leaves often obsoletely serrulate tmcards the 

 apex, or more than 1 mm. broad. 



(4) L. miniatum. 



3.3. Leaves 10 20 mm. long. (13) L. hippuris. 



3.3.3. Leaves 20 50 mm. long. (14) L. caudifolium. 



(1) Ei. serratiim, Tfcft., Spring, Mon., I, 39; Rac., Flor. Btz., I, 

 238 ; Hk. & G-rev., Ic. Fil, tab. XXXVII ; L. javanicum, Sw., Spring, 1. c., 

 40; L. reflexum, Schk., Krypt. Gew., I, tab. 159. 



Shoots erect, or ascending from a decumbent base, varying from 

 simple to copiously dichotomous, 15 40 cm. long, 1V 4 6 cm. diam. 

 including the leaves, often bearing prolific buds near the apex. Leaves 

 laxly disposed, spreading or deflexed, moderately thin, sessile or sub- 

 petiolate, often very irregular in size but not in shape, lanceolate, to 3 

 cm. long and 4 mm. broad, acute or minutely apiculate, narrowed gradu- 

 ally to the base, the edge eroso-denticulate at least towards the apex, 

 the midrib distinct, prominent. Sporangia in the axils of unaltered leaves 

 all down the stem or branches. Two distinct forms united by inter- 

 mediates. 



Forma typica: Leaves serrated throughout or nearly so. 



