LYCOPODIALES. 



153 



within square brackets, thus implying that, while it is incorrect, 

 there is not sufficient evidence to justify removal at present. 



This species is known only from the Newcastle Series of New 

 South Wales. 



Not represented in the British Museum collection. 



INCERT^E SEDIS. 



OBSC URE S TEM- STB UC TUBES. 



There are several fairly large, and sometimes branched stem- 

 structures in the British Museum collection from the Nagpur 

 district, India, some of which may possibly be fern-stems, but they 

 do not offer sufficiently good morphological characters to permit of 

 identification. 



46.705. A stout stem, 6 cm. across, and much branched above. 

 Surface smooth, with deep irregular grooves. 



Silewada, 12 miles north of Nagpur, India. Hunter Coll. 



46.706. Branched stems, in one instance, tripinnate. Some of 

 the branches are 15 cm. long, and quite smooth. The main axis of 

 the tripinnate stem is 3 cm. across ; the secondary branch is 3 mm. 

 broad at the base, and bears fine tertiary branches. 



Silewada, 12 miles north of Nagpur, India. Hunter Coll. 



V. 7201. A portion of a smooth stem, 13 cm. long and 

 approximately 25 cm. broad. 



Silewada, 12 miles north of Nagpur, India. Hunter Coll. 



V. 7149. A badly pi'eserved stem, 17-5 cm. long. 



Near Nagpur, India. Hunter Coll. 

 V. 9764. Another specimen, 7 cm. long and 6*3 cm. broad. 



Silewada, 12 miles north of Nagpur, India. Hunter Coll. 



Class LYCOPODIALES. 



Stem nearly always well developed, herbaceous, shrubby, or 

 arborescent, dichotomously or monopodially branched, more rarely 

 uubranched. Leaves simple, undivided, as a rule small in comparison 

 with the size of the stem. Sporangia isosporous or heterosporous, 

 simple, exannulate, usually borne singly on the upper surface or 



