— 551 — 



majoribus: summo rotundatoovato breviore, lateralibus 

 obliquis attenuatoovatis, petalis vix crassioribus sepala 

 lateralia aemulantibus , labello baud longiore ovatoob- 

 longo obtuso basi obtusissime auriculato, calcari tenui 

 acuto germen superante, antherae emarginatae loculis 

 divergentibus, rostello depresso obtuso. 



Kiusiu: Nagasaki (ipse, Oldh.! n. 842, a Miquel 

 Habenaria japonica dicta), prov. Omura prope Sonnogi, 

 prov. Higo monte Higosan (ipse). 



Ab affini PL mandarinorum Rchb. f. in Linn. XXV, 

 1852, 226, Bot. Zeitg. 1878, 75 (cujus Synonyma 

 Habenaria Keiskei Miq, Prol. 139. Platanthera Keiskei 

 Fr. Sav. En. II, 31, Plat, oreades ß. macrocentron 

 Fr. Sav. En. II, 514) satis distincta radice, foliis, 

 racemo laxo et labello brevi. 



Platanthera ussurîensîs. Radix e fibris tenuibus cylin- 

 dricis horizontaliter divaricatis, caule gracili 1 — 2-pe- 

 dali supra basin 2-phyllo: folio infimo obovatooblongo 

 obtuso, superiore oblongolanceolato breve acuminato, 

 utroque basi attenuato et in vaginas tubulosas abeunte, 

 foliis sequentibus bracteiformibus linearibus acumina- 

 tis, spica digitali laxa multiflora, bracteis acuminato- 

 linearibus ovaria aequantibus, floribus viridibus parvis: 

 sepalis membranaceis 3-nerviis superiore rotundato 

 lateralibus paulo longioribus ovatooblongis petala 1- 

 nervia carnosa oblonga subsuperantibus, labello crasso 

 patente papillose sepalis paulo longiore ovato et basi 

 utrinque in lobulum depresse deltoideum dilatato 

 apice obtuso, calcari rectiusculo ovario breviore, anthe- 

 rae truncatae loculis discretis parallelis basi vix atte- 

 nuatis, rostello deltoideo libero, processubus lateralibus 



