170 ACCOUNT OF SOME SPECIES OF 



Kyllingia leiicocephala. 



Oulmo subtriquetro, sulcato : foliis angustis, acutis : invo- 

 lucro tiiphyllo : capitulis i — 3-glorneratis, albis, subcylindri- 

 cis : glumis subsequalibus, membranaceis, obtusis, carinis pa- 

 lide viridibus : semine obovato, compresso, marginato : jlo- 

 ribus monandris, bibracteatis, bracteis inequalibus^ membra- 

 Jiaceis, obtusis, corolla multo brevioribus : pistillum bifidum. 



Root librous. Cul?n 3 — 8 Inches high. Leaves rather 

 shorter than tlie culm, with sheaths open at base, and sca- 

 brous towards the summit. Involucre from one to four 

 leaved, but generally three, reflexed, and scabrous on the 

 margins. Heads solitary or in threes, the middle one much 

 the largest, vertical, and cylindrical ; the others are placed 

 opposite at its base, horizontal, and of a globular form. They 

 are at first white, but generally change on drying to a pale 

 yellow. 



There is sometimes found in tliis species, besides the brac- 

 teas, a minute, ovate, obtuse scale, situated at the base of the 

 calyx. 



Common in both high and low situations, at Rio de Ja- 

 neiro and at Bahia in the Brazils, and also at the Banda Ori- 

 ental on the Rio de la Plata, where I met with it in March. 

 1818. 



Kylliiigia squarrosa. 



Culmo exacte triquetro : foliis angusto-lanceolatis : invo- 

 lucro 3 — 6-phyllo, longissimo : capitulis 5 — 7-glomeratis, 

 subsquarrosis, cyWn&ncxs, uno in medio verticali : glumis sub- 

 aequalibus, obtusis, carinis viridibus -.floinbus triandris, bibrac- 

 teatis, bracteis inwqualibus, calyce brevioribus : pistillum tri- 

 Jidum. 



Boot tuberous. Culm 6 — 18 inches high. Leaves shorter 

 than the culm, with closed sheaths, and the margins scabrous. 

 Leaves of the involucre similar to those at the base of the 



