TO LOWER SUM. 209 



Thysanotus siamensis, n. sp. 



Leaves slender, terete, glaucous, green, 8 inches long. 

 Stems slender, terete, glaucous, green, 10 inches long, iV 

 inch through. Flowers terminal, umbelled about 6 or 

 7. Bracts very small, lanceolate with white scarious 

 margins. Pedicels half an inch long, erect, in flower 

 pendent in fruit. Sepals green, lanceolate, oblong, obtuse 

 with broad white scarious margins, i inch long. Petals 

 as long, oblong, lanceolate, obtuse, blue fringed on the 

 edge, with a whitish central bar. Stamens 6, half as long 

 as the sepals, filaments very short, anthers twice as long, 

 linear, oblong, obtuse, truncate. Ovary small, globose, 

 style slender, cylindric, filiform, as long as the stamens. 

 Capitate capsule globose, t inch long, subtended by the 

 persistent sepals, dehiscing from the apex, seeds 2 in each 

 loculus. 



Setul, heaths behind the village, local but abun- 

 dant in one or two spots (14980). 



The genus Thysanotus is typically Australian, but 

 one species occurs in Hongkong and the Philippines also, 

 which differs in its foliage. The flowers open in the 

 early morning and close very speedily, remaining open a 

 few hours only. They open singly. 



Chlorophytum lo.ngissimum, Eidl. Trang (Curtis). Endemic. 



Chi. orchidastrum, Lindl. On rocks at Tebing Tinggi, Perlis, 

 abundant, but not in flower. Distrib. India and Malay 

 peninsula. 



Dianella ensifolia, Red. Setul. Distrib. Mascarene islands, 

 Indo-Malaya, Australasia. 



Asparagus racemosus, Willd? Lankawi and Tonka (Curtis). 

 Distrib. India. Species doubtful, no fruit or flowers. 



Dracaena siamensis, Ridl. Perlis, sandy heath near Ginting 

 Kabok. Endemic. 



R, A. Soc, No. 59> I9H- 



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