93 



Anthera ovata 3 mm. longa apiec acuminata. 



HAB. Urai, log. S. SASAKI, xlprili. 1910. 



Remarkable for the rostellum which is much longer than that of any 

 other species of the genus in the island. 



Gastrodia R. BR. 



Gastrodia dioscoreirhiza HAYATA sp. nov. Terrcstris aphylla. Tuber 

 longissiniuni cylindricum vermiforme recurvum hand radiciferum 2030 cm. 

 longum 10-20 cm. in diamctro rugosissimum squaniis tenuissimis hyalinis sparse 

 obtectuui apicc ad scapum abeuns. Scapi complanati fulvo-rubesceutes hac atquc 

 iliac vaginis brcvibns instruct!. Rhachis florifcra 3-4 cm. longa glabra, bracteis 

 oblongis 3 mm. longis 2 mm. latis apice obtusis valde-concavis glabris, pediccllis 

 erectis glabris ovario exccpto 4 mm. longis, ovariis obconico-cylindricis apice 

 hand coiitractis 2 mm. latis 2 mm. longis basi attonuatis. Sepala cuni petalis 

 connata tubum formaiitia fulvo-rubesceiitia, tubo circ. 1cm. longo 4mm. lato 

 5-lobato, lobis extcrioribus (sepalis) 1-2 mm. longis semi-clausis valde concavis 

 intus Irevibus extus tuberculatis, lobis mtcrioribns (petalis) rotundatis 1^-2 mm. 



longis Irevibus 1^ mm. latis basi coiitractis. Labellum Columna 



clongata triquctra ad aiigulos manifests alata. 



HAB. Girancho : Soseikyaku, leg. B. HAYATA, 12, Mai. 1916. 



Very remarkable for its long cylindrical tubers. 



Platanth era RICH. 



Platanthera stenoglossa HAYATA Ic. PL Formos. IV. p. 123. 



HAB. Rankanzan, leg. B. HAYATA ad 4000 ped. alt,, Mai. 1916. 



Note : Rhachis and sepals pale green ; petals and lips pale yellow. 



Gyvnnadenia R. BR. 



Gymnadenia Tominagai HAYATA sp. nov. Terrestris. Caulis simp- 

 lex 8-10 cm. longus crcctus subrectus gracillimus supra basin 2-foliatus apice 

 l_2_noratus. Folia alterna oblanceolata 4cm. longa 3-^ mm. lata apicc acuta 

 basi gradatim attenuata erccta membranacea integra. Florcs 1-2 terminales 

 vel laterales, bracteis lanceolatis 1 cm. longis 3 mm. latis apice acuminatis 

 glabris. Ovarium sessile ovoideo-cylindricum 7 mm. longum glabrum. Sepala 

 hifficjualia ; posticum crectum intus concavum oblongum 6 mm. longum apice 

 obtusum basi plus minus contractum glabrum 3-iiervium, latcralia quarn 



