collected by Mr. Schomburgk in British Guiana. 445 



62. Hyptis paludosa, St. Hil. Benth. 1, c. p. 82. — Moist Savannahs, 

 British Guiana. Schomburgk, n. 686. 



63. Hyptis lantancefolia, Poit. Beuth. I.e. p. 101. — British Guiana. 

 Schomburgk, n. 188. 



64. Hyptis brevipes, Poit. var. /3. Benth. 1. c. p. 1 05 ; forma capitulis 

 majoribus siibsessilibus. — Moist Savannahs, Upper Rupunoony. Schom- 

 burgk. 



65. Hyptis Parkeri. Benth. 1. c. p. 108. — Sands of the Essequibo, Bri- 

 tish Guiana. Schomburgk, n. 598. 



66. Hyptis pectinata, Poit. Benth. 1. c. p. 127.— French Guiana. Herb. 

 Par. n. 175. 



67. Marsypianthus hyptoides, Mart. Benth. 1. c. p. 64. — British Guiana. 

 Schomburgk, n. 215. 



VERBENACEiE. 

 Tribe Verbene*. 



The order of Verhenacea has been divided by Bartling, according 

 to the inflorescence, into two tribes, and by Endlicher into three, ac- 

 cording to the degree of adherence of the carpellary elements and the 

 consistence of the pericarp. Of these systems Bartling's would ap- 

 pear at once better characterized and more natural, but requires con- 

 siderable modification in the details. 



The Verbenea, which may be considered as the first tribe following 

 the LabiatoR, to which they are closely allied, would be characterized 

 by the simple spicate inflorescence (the flowers solitary, sessile, or 

 rarely borne on short simple pedicels, along a simple rhachis), and 

 the ovules straight, anatropous, and erect from the base of the cells. 

 They are herbaceous, or more frequently shrubby, but seldom if ever 

 really arborescent. The leaves are often divided, but never compound. 

 The calyx remains herbaceous or membranous, nor does it appear 

 to acquire any remarkable extension after the fall of the corolla. 

 The cells of the ovary are often diverging at the base, especially 

 during the growth of the fruit, so as to leave between them a space, 

 either empty in the dry-fruited genera, or filled with pulp in the suc- 

 culent ones, which space is often described as one or two additional 

 empty cells. 



The Verbenea would comprehend among the genera with a bilo- 

 cular ovarium : Spielmannia, with axillary solitary flowers ; Crypto- 

 calyx, Lippia, Riedelia, Dipterocalyx, Lantana and Camara, with im- 

 bricate capitate flowers ; and Aloysia, Bouchea and Stachytarpheta 

 with spicate flowers. Of the genera with a quadrilocular ovarium 

 t would contain Verbena, Dipyrena, Chascanum, Tamonea, Priva, 

 {Casselia, Monochilus (?) and Chloanthes. 



