136 a day at christmas island 



Henatic^. 



Ptychanthus squarrosus, Mont. 

 Lejeunia serpyllifolia, Lib. 



Lichens. 



Usnea trichodea, Ach. 



Fungi. 



Polyporus australis, Fn 

 P. conchatus, Fr. 

 Stereum lobatum, Kze. 



New Species Described. 

 Sa rcoch ilus ca rinakifolius. 



Stem six inches long, flattened. Leaves fleshy oblong-ellip- 

 tic slightly unequally bilobed blunt at the lip, bright green 

 very strongly keeled especially at the base, two inches long 

 one inch across; the base flattened laterally so as to form a 

 broad flat petiole ; sheath very deeply cleft on side opposite to 

 lamina, when dry strongly ribbed. Scapes very graceful erect 

 slender pale green about six inches long with one or two 

 small sheathing bracts. Raceme of few flowers, opening one 

 or two at a time, rachis thickened terete ; bracts lanceate acute; 

 green \ of an inch in length ; flowers small thin textured, 

 white withering buff; ovary and pedicel \ inch long, straight 

 bright green. Posticous sepal lanceolate acuminate with re- 

 curved apex, laterals similar but the base prolonged below into 

 an angle, keeled outside. Petals shorter linear lanceolate. 

 Lip white base prolonged to form a blunt spur, lateral lobes 

 very long narrow linear acuminate, midlobe shorter thick 

 ovate blunt ; a lorate raised ridge on the disc ending in a blunt 

 rounded callus on the midlobe ; a yellow spot on the base 

 of the lip outside. Column straight thick with a distinct foot, 

 clinandrium nearlv flat, wino>s of column bent over the face, 



