206 PROCEEDINGS OF THE AMERICAN ACADEMY 



476. Potamogeton pauciflorus, Pursh, Fl. 1, p. 121 ; Cham. 

 1. c. p. 176, t. 4, f. 7. (M. & B. 57.) 



Zingiberacece. 



All. Zingiber Zerumbet, Rose, in Trans. Linn. Soc. 8, p. 384. 

 (M. &-B.) 



478.f Canna Indica, Linn., has run wild in many places. Also a 

 yellow variety ? 



Iridacece. 



479. Sisyrinchium acre (sp. nov.) : glaberrimum ; caule simplici 

 ancipiti; foliis radicalibus linearibus 8-10-nerviis scapo brevioribus ; 

 spatha communi pedicellis paucis requilongis vel brevioribus ; perigonio 

 flavo, lobis ovatis obtusis 5 - 7-nerviis ; filamentis antheris brevioribus 

 brevissime monadelphis ; stigmatibus (stylo longioribus) perigonio bre- 

 vioribus ; capsula obovata. — Common near Kilauea, Hawaii, and on 

 the mountains of that and other of the islands, in dry land. Remark- 

 able for its very short style, and barely monadelphous filaments. The 

 acrid juice of the root is used by the natives for tattooing; applied to 

 the skin it raises blisters, and leaves an indelible blue stain. (M. & 

 B. 438; Remy, 166.) 



Dioscoreacea. 



480.* Helmia bitlbifera, Kunth, Enum. PI. 5, p. 435. Dioscorea 

 hdb~ifera, Linn. (Remy, 162.) 



481.* Dioscorea pentaphylla, Linn. 



Smilacinece. 



482. Smilax Sandwicensis, Kunth, 1. c. p. 253. (M. & B. 222.) 



483. Smilax anceps. Willd. Spec. 4, p. 782. (Remy, 157.) 



Commelynacece. 



484.f Commelyna Cayennensis, Rich. G. agraria, Kunth. (M. 

 & B. 57.) 



485.f Tradescantia floribunda, Kunth, Enum. PI. 4, p. 89. 

 (W. T. Brigham ; Hillebrand.) 



Orchidacece. 



486. Ancectochilus (Myrmechis) Sandwicensis, Lindl. Gen. & 

 Sp. Orch. p. 500. 



487. Ancectochilus Jaubertii, Gaud. Bot. Bonite, t. 100. — This 



