HYDP.aHARrDE.i:. ORCHIDE.i:. 



23 



Hydrocharideae. 

 Hydrochfivis Linx. 

 Hydrocharis asiatica ^Iiq- 



H.\r>. Kusliuu (Herb. Tailiokn). 



Orchideae. 

 Oheronia Ldcdl. 

 Oberonia arisanensis H.u-at.v .sp. nov. (Fig. 3, a-e, aud h.) Epipbjta 

 Ijeudiila. Caulis cum spicis 1.5 cm. longus casspitosus, partibas foliatis mferioribus 

 () cm. longis deuse approsimatim foliatis, partibus floriferis peudulis filiformibus 

 7 cm. longis, parti- 

 bus inter eam 

 Horiferam et eam 

 foliatam "^-Scm. 

 longis squamiferis, 

 squamis lanceolatis 

 acumiuatis 2 mm. 

 lougis. Foliaalterna 

 disticlia approxi- 

 mata iu essiccato 

 coriacea in vivo 

 erassiuscula im- 

 bricata semi-ob- 

 longa equitantia 

 latere compressa 

 plana li-2 cm. 



longa 5 mm. lata apice obtusa vel ad summum apicidata basi ad vaginam 

 abeimtia liaud articulata, margine inferiore recta, margine superiore — --formiter 

 recurva, vaginis se imbricatis. Spicse 7 cm. longa>, rliacliibus filiformibus, 

 floribus veiiicillatim aggregatimque ad nodos sitis, nodiis a se 1-2 mm. 

 remotis, bracteis ovato-lauceolatis li mm. longis | mm. latis apice acmninatis 

 margiue obscm-e erosis, pedicellis cum ovariis 1 mm. longis. Sepalmn 

 ix)stieum oblougum 1 mm. longum 5 mui. latum sursum concavum vei-sus 



Fig. S, n. b, c, d, e, h, Oberonki nrisftwnsis Hay,it.i; a, a clorsal 

 sepal ; h, a lateral sepal ; c, a i>etal ; d, a lii3 ; e, a cohumi ; b, a 

 pollmiiini ; f , g, Oheroni/t formosuwi Hatata ; g, a lip ; f , a column, 

 seen from front ; i-k, Oheronia k-usulinsensis Hayaia ; i, a hi) ; j, a 

 column, seen from front ; Ij, the same, seen from side. 



