March, igoo. Planive Utowan^e Millspaugh. 31 



Tillandsia utriculata Linn. Sp. PI. 286. 



In same situations as the previous species loc cit. (1294). Plants 

 about 60 cm. high, heavily bulbous at the base, 6-10 cm. diameter. 

 Leaves 3 cm. broad at base, 20-30 cm. long; spike compound, branch- 

 ing at each upper internode for one-half its length; branches (16) lower, 

 8 (upper) cm. long; internodes of lower spike average 3.5 cm., 

 their bracts 2.8 cm. long; fruits profuse at the ends of the branches ; 

 bracts and sepals 2 cm. long, fruits 2.8 cm. long. 



COMMELINACE.E. 



COMMELINA NUDIFLORA Linn. Sp. PI. 4. 



C. agraria Kunth., C. Cayennsis Rich. Ditches at Walsingham, 

 Bermuda (ioo); environs of Charlotte Amalia, St. Thomas (439), and 

 rich, moist soils near Port Antonio, Jamaica (11 36). 



Commelina Virginica Linn. Sp. PI. ed. 2:61. 



C. elegans Kunth. Rich soil south shores Culebras Island (613); 

 suburbs of Charlotte Amalia, St. Thomas (406), and of San Domingo 

 City (845, 877). Boggy soil center of Grand Cayman (1386). 



Commelina pallida Willd. Hort. Berol. 2:87. 



Moist soils near the Caleta, Cozumel (1530); ditches near Pro- 

 greso, Yucatan (1679). 



Callisia umbellulata Lam. Illus. 1:130. 



Creeping in a boggy spot near the Caleta, Cozumel (1520). 



Rhceo discolor (L'Her.) Hance Walp. An. 3:659. 



Tradescantia discolor L'Her. Waste heaps Georgetown, Grand 

 Cayman (1405); undoubtedly introduced, as it is grown in dooryards 

 near by. Probably brought from Jamaica, where it is also an intro- 

 duced plant. 



AMARYLLIDACEiE. 



Hymenocallis Carib^a (Linn.) Herbert App. 44. 



Pancratium Caribceum Linn. Plentiful on the dunes of the coast 

 at Santurce, Porto Rico (295). 



Agave Americana Linn. Sp. PI. 323. 



Shores of the Bay of Santiago (1013), the most striking vegeta- 

 tion of the dry season, the flaming orange-yellow spikes rising 5-7 

 meters, overtopping most of the shrubby covering of the shores. 



CANNACE.E. 



Canna edulis Ker-Gawl. Bot. Reg. 9, t. 775. 



Open, moist fields at Santurce (261), cane fields at Guanica*, 

 Porto Rico, and open woods at Chichen Itza, Yucatan (1636). 



ORCHIDACE.E. 



Habenaria monorrhiza (Sw.) Rich. fil. vide infra. 



Orchis Sw. Grassy fields at Catano (257), and at Bayamon (309), 

 Porto Rico. 



