BROMF,LIACE« IITDROCH ARACKiE. 617 



(Bromelia nudicaulis, Hook. exot. fl. t. 143.) '4. Trinidad. — B. pur- 

 pureo-rosea. Hook ; B. M, 61, t. 3304. % Brazil. — Pitcairnia Karwin- 

 skyana, Schult. fil. % Mexico.— P. Jlammea, Lindl. ; B. Reg. 13, t. 1092. 

 ^, Brazil.— P. suaveolens, Lindl. ; B. Reg. 13, t, 1069. % Rio Janeiro. — 

 P. Redouteana, Schult. %. St, Cruz. — P.sulphurea, Andr. (P. bracteata, 

 /3. sulphurea, B. M. 34, t. 1416.) 2|. W. Indies. — P. albucafolia. 

 Schrad. %. W. Indies.— Tillandsia Bartramii, Ell. % Georgia.— T. 

 recurvata, L. % Jamaica. Bahama Islands. — T. pulchra, Hook. exot. 

 fl. t. 154. % Trinidad. — T. coerulea, Humb. and Bonpl. %. Mexico. — 

 T. Karwinskyana, Schult. fil. %. Mexico. — T. bulbosa. Hook. exot. fl. t. 

 173. %. Mexico. — T.flexuosa, Swz. (T. flexuosa y. Lindl. ; B. Reg. 9, 

 t. 749.) "Z/.. Jamaica. — T. reticulata, Sm. % Jamaica. — T. nitida. Hook, 

 exot. fl. t. 218. %. Jamaica. 



ORDER CCXXXIV.— HYDROCHARACE^, Lindl. Nat. Syst. p. 33,3. 



Floating or water plants, by Lindl. referred to 12 genera. Of these 

 Spreng. syst. assigns 3 species to Europe, (1 also Indian) ; 2 to S. Ameri- 

 ca ; 2 to N. Holland, (I also a native of India) ; 1 Egypt, (also a native 

 of India) ; and I to N. America. In the E. Indies have been discovered 4 

 species of Ottalia ; 3 of Vallisneria ; I of Hydrilla ; I of Blyxa ; 1 of 

 Enhalus ; and 1 of Hydrocharis. A species of Blyxa has been found in 

 Madagascar. Properties under the species. 



A. Anachariij^, (Anacharidse, Endl. gen.pl. 1, p. 161.) 

 Hydrilla, L. C. Rich. {Endl. I. c.) 



1. verticillata, L. C. Rich. {Mem d'inst. [181 1.] 2, p. 6\ , t. 2. — Serpicula 

 verticillata, Lin. fil. ; — Roxb. fl. ind. 3, p. 578 ; — J. Grah. Cat. B.pl. 

 p. 76 ; not Rostcow^. — Vallisneria verticillata, Roxb. fl. ind. 3, p. 751. 

 Udora verticillata, Spreng. 1, p. 170. — Hottonia serrata, Willd.) 

 Coromandel. Mahableshw^ar. Bengal, (Serampore.) and northwards to 

 Saharunpore. Fl. small, whitish, R. S. ; fr. C. S. This and similar 

 plants are employed by the sugar-refiners of Saharunpore and Ber- 

 hampore for covering the surface of their sugars, as clay is used in 

 the W. Indies, to permit the slow percolation of water. {Roxb. Royte.) 

 B. Vallisnerie^, Endl. gen. pi. \, p. 161. 

 Vallisneria, Michel. {Endl. I. c.) 



\. spiralis, L. {R. Br. pr. p. 201 ; — Wight, in Hook. bot. misc. suppl. 23, 

 24. — V. spiraloides, Roxb. fl. ind. 3, p. 750; — /. Grah. Cat. B. pi. p. 

 200. — V. Jacquiniana, Spreng. syst. 3, p. 900.) © N. America. S. 

 France. N. Italy. N. Holland. Coromandel. The Concans. Patna, Ike. 

 Fl. small, K. S. {Roxb.) 



4 K 



