Zeuxine sulcata, Lindl. has a very wide range, extending from India 

 to Afghanistan toward the west, Ceylon and Java to the south, the Philip- 

 pines to the east, Hongkong 1 ) and Formosa;) to the north-east, and thence 

 further nothward to 31° 17' X. Lat. in southern Japan, where it is found 

 to grow under the shade of Pints Thunbergii, Pari. Although this species 

 is not as yet recorded from the Luchuan Islands, it may, I think, be ex- 

 pected there. In Formosa, l>esides.Z. sulcata, Lindl., we find an endemic 

 species Z. formosana, Rolfe 8 ), which somewhat resembles Z. flava, Trim, in 

 its habits. 



From the foregoing remarks, it will be seen that no less than 20 species 

 of this genus are at present known from tropical Africa, tropical and 

 subtropical Asia, as well as from the Malay Archipelago. Among them, Z. 

 sulcata, Lindl. has, as indicated above, a most extensive range in Asia, but 

 is nowhere to be found in Africa, and, being subjected to variation, often 

 produces local forms and varieties, and consequently appears to \>e one of 

 the most typical as well as the most archaic among the species of the whole 



Confining ourselves again to the Japanese flora, the discovery of 

 Zeuxine within its southern boundary is especially interesting as furnishing 

 another remarkable example to the list of its tropical elements, whose num- 



supposed. 



Explanation of the Figures in Plate II. 



Zeuxine sulcata, Lindl. 

 Fig. 1. Entire plant. Natural size. 



2. Flower, with bract, side view. Enlarged. 



3. Flower, side view. Enlarged. 



4. Flower, front view. Enlarged. 



5. Petals. Enlarged. 



6. Flower, all the perianth removed, side view. Enlarged. 



7. Column and portion of lip, front view. Enlarged. 



8. Pollinia, front view. Enlarged. 



n Trans. As. ' .lay. XXIV, >„,,,,!.'. p. 92 (1890). 



