22'6~' 103. SELAGINELLA. A'." PLEIOSTELICAE. 



lateral leaves spreading, falcate, acute, entire, to 2 mm. long, the upper 

 base cuneate, not auricled, or if so, the auricle rudimentary, plicate-revolute, 

 the lower base rather truncate ; intermedial leaves shorter, erect, obliquely 

 lanceolate-oblong, acuminate, pellucid-margined, the base oblique, cuneate- 

 decurrent or somewhat rounded on the outer side. Spikes 1 — 2 mm. 

 diam. ; sporophylla deltoid-oblong, acuminate, entire, narrowly pellucid- 

 margined; macrospores pale-yellow, pale-yellow-brown or reddish, finely 

 verruculose to shortly rugose-verrucose ; microspores yellowish or whitish, 

 densely verruculose to coarsely verrucose. — According to the plants 

 occurring in the Buitenzorg Herbarium, and determined as S. d'Urvillei, 

 this species seems to be variable, or the incomplete description available 

 to me fits several different, though related, forms. Home's No. 549 from 

 Fiji has the lateral leaves blunt or bluntish, those of the stem and branches 

 with a cuneate upper base with a minute, narrowly incurvate-hamate 

 basal auricle, the axillary leaves of the stem and pinnae lanceolate-elongate, 

 " broadest in the lower half, the base 2-auriculate-cordate, the inner auricle 

 hamate-incurvate, the outer auricle straight, spur-like ; and a form gathered 

 in Amboina has the intermedial leaves of the stem obliquely rounded or 

 subcordate at the base, the auricles hardly produced, not incurved. Some 

 of our specimens have the stems incompletely 4 — .5-stelical, rather 3-stelical 

 with a tendency to become 4 — 5-stelical, and the axillary leaves hardly 

 2-auriculate-cordate at the base. 

 Amboina to Polynesia. 



Species of an indefinite systematical place, probably belonging to the 

 groups in which they are placed here. 



Ai. MONOSTELICAE. 



a^. Radicattte*. 



S. Ridleyi, BU., Ann. of Bot., VIII, 131. 



Shoots decumbent, intricate, the higher branches distant, short, simple. 



