(13) OSTISN FELD. PLANTS COIXECTED IN IHK KAHENG DISTRICT, UPPER SIAM 721 



88. Eleusine indica Gœrtn. ; Hook, f., 1. c. 293. 

 Long Isom ; common iü open places (No. 34). 



89. Eragrostis tenella Rœm. et Seh., var. tenella Stapf; Hook, f., 1. c. 315. 

 Near Tapotsah , very common in open places (No. 12, 29). 



90. E. interrupta Beauv., var. tenuissirna Stapf, Hook, f., 1. c. 316 (determ. 

 0. Stapf). 



Near Tapotsah. 



91. E. amabilis Wight et Arn. ; Hook, f., 1. c. 317 (determ. 0. Stapf). 

 Near Tapotsah. 



92. E. elongata Jacq. ; Hook, f., 1. c. 319 (determ. 0. Stapf). 

 Near Tapotsah. 



FILICES 



93. Lygodium dichotomum Swartz. 

 Near Tapotsah (No. IS) ; common. 



94. Nephrodium variolosum Baker. 



Between Long Isom and Nong Boa, along the river (No. 46) ; common. 



95. N. pteroides F. Smith. 



Between Long Isom and Nong Boa, along the river (No. 44) ; very common. 



96. Pteris cretica L. 



Between Long Isom and Nong Boa, along the river (No. SO). 



SELÄGINELLACE& 



(Auetore G. Hieronymus). 



97. Selaginella fulcrata (Ham.) Spring, Monogr. II, p. 171, n. 112, ex 

 descriptione et e fragmentis speeiminis authentici (Wallich n. 12S) ab Herbario 

 Kewensi misso. 



Species ab affini S. pubescente Wall., quod nomen cl. Baker (Hand, of the 

 Fern-Allies p. 98) incaute ut synonymum citât, differt ramis ramulisque omnibus 

 laevibus (nee pubescentibus), foliis rigidioribus, lateralibus acutioribus margine 

 superiore et basi marginis inferioris grosse ciliatis, foliis intermediis margine 

 parce ciliato-dentatis etc. 



Habitat in regno Siam, distr. Raheng, c. 16° 30' lat. bor. in silva Wang Chow 

 ad fluvium prope Long Isom et Nong Boa frequens (E. Lindhard n. 4S ; 9 m. 

 Jan. 1904). 



98. Selaginella Ostenfeldii Hieron. n. sp. 



Heterophyllum e turma Selaginellœ Pervillei Spring ; rhizomatibus late repen- 

 tinus, subterraneis (?), c. 2 mm. crassis, bracteis paleaceis enerviis ovato- 

 deltoideis peltatis fuscescentibus margine ubique irregulariter lacerato-ciliatis c. 



