XVI. SEL..^GMNEL.Lj\.C£:jVE. 

 103. SELA-GmVEI^L-A., Spving. 



AK MONOSTELICAE. 



(7rt) See No. 41a. 



(11a) S. subalpina. ». A. ». n., in Bull. Btz., 1915, XX, 26. 



Shoots decumbent or ascending, pinnate down nearly or quite to the 

 base, whether or not dichotomous in the lower part, the primary rachis 

 flexuose, obtusely angular, + 2'/2 — 3 mm. thick, pale-stramineous-brown, 

 ± 10—12 mm. broad including the laterel leaves; pinnae erecto-patent, 

 + 10 — 15 cm. long, or longer and growing out to new shoots; pinnulae 

 simple, forked or pinnately compound ; ultimate branchlets short, +5—6 

 mm. broad. Leaves heteromorphous ; lateral leaves subhorizontal ; of the 

 main rachis rather remote, unequal-sided, oblong, blunt, the upper side 

 entire or subentire at the middle, obsoletely denticulate towards the apex, 

 minutely serrulate towai'ds the broadly rounded base, the lower side 

 entire except at the obsoletely denticulate apex and the minutely serrulate 

 and narrowly rotundate-subcordate base, the largest leaves + S'/j mm. 

 long, + 2'/^ mm. broad; of the branchlets subsimilar, close or imbricate, 

 subfalcate, less unequal-sided, provided with narrow, interrupted spurious 

 veinlets, the upper side narrowly pellucid-margined, more copiously 

 denticulate throughout, rotundate-cuneate at the base, the largest leaves 

 + 3 mm. long; intermedial leaves erect, adpressed; of the main rachis 

 rather remote, obliquely cordate-oblong, acuminate, hardly aristate, minutely 

 serrulate, 2-auriculate at the base, the inner auricle narrowly rounded, 

 the outer auricle produced, broadly incurved, the largest leaves + 3 — 3'/4 

 mm. long; of the branchlets subsimilar, smaller, imbricate, shortly aristate- 

 acuminate, narrowly pehucid-margined, the inner base hardly cordate, the 

 outer base hardly incurved. Spikes nearly spuare, single or double, + 

 I'/i mm. diam. when young, stouter when adult; sporopliylla erect, sub- 

 isomorphous, deltoid-ovate, acuminate, minutely serrulate, naiTowly 

 pellucid-margined, keeled, the ventral ones somewhat larger than the 



