66 THE VOYAGE OF H.M.S. CHALLENGER. 



Pilea microphylla, Liebm. 



Pilea microphylla, Liebm. in K. Dansk. Vidensk. Selsk. Skrift, ser. 5, ii. p. 296 (reprint, p. 12). 

 Pilea viuscosa et Pilea herniarioides, Linill., Collect., t. 4; Chapm., Fl. Southern U.S., p. 413; 

 Griseb., FL Brit. W. Ind., p. 155. 



Bermudas. — Indigenous ? Moseley ; Lefroy. 



Generally diffused in Tropical and Sub-tropical America. 



MYRICACEiE. 

 Myrica cerifera, Linn. 



Myrica cerifera, Linn., Sp. PI., ed. 2, p. 1453 ; Chapm., Fl., Southern U.S., p. 426. 



Myrica punctata, Griseb., PI. Wright., p. 177? 



Myrtus brabantica, Pluk., Aim., p. 250 bis (260), et Phytogr., t. 48, fig. 8 et 9. 



Bermudas. — Indigenous. Abundant in the marshes — Lane; Rein; Moseley; Lefroy. 

 And in Sloane's Herbarium, ci. p. 49. 



A sea-shore and swamp shrub, ranging from Massachusetts to Florida, the Bahamas, 

 and Cuba. 



Rein identified his specimens of Myrica with Myrica punctata, Griseb., which, judging 

 from the specimens so named in Kew Herbarium, is not specifically different from the 

 common Myrica cerifera, Linn. 



CERATOPHYLLE/E. 



Ceratophyllum demersum, Linn. 



Ceratophyllum demersum, Linn., Sp. PL, ed. 1, p. 992; Griseb., Fl. Brit. W. Ind., p. 12; Chapm., 

 Fl. Southern U.S., p. 398. 



Bermudas. — Indigenous. Without locality or other information — Rein. 



Nearly all over the world, except the colder regions. 



This and the other true fresh-water aquatic plants [Lemna minor and Lemna trisulca) 

 must be exceedingly rare and local, for there is scarcely any fresh water in the islands, 

 except in the rain-water tanks. 



MONOOOTYLEDONES. 

 ORCHIDE.E. 



Spiranthes tortilis, Rich. 



Spiranthes tortilis, Rich., Orch. Annot., p. 37; Griseb., Fl. Brit. W. Ind., p. 640; Rein in Bericht 

 Senckenb. Naturf. Gesellsch., Frankf. am M., 1873, p. 151. 



Bermudas. — Indigenous. Pembroke marshes — Lefroy ; without locality — Moseley ; 

 only two plants were seen growing in an open place amidst Stenotaphrum americanum — 

 /''in : marshes — Reade. 



Antigua, Jamaica. 



