250 PLANTAE AMERICAN AE. 



Radix lignofa, hinc inde fparfa, fibris filifor- 



mibus durioribus. 

 Caulis fuffi'utefcens, lignofus, duor. vel trium 



pedum altitudine, eredus, tenuis ; ramis 



oppofitis, brachiatis, fed facpe deficiunt ab 



lino alterove latere i tener, glaber* 



Folia inferiora decidua ; fuperiora pauca, viren- 

 tia, ovato-oblonga, acuta, niox fenfim mu- 

 cronata, uncialia, tenera, pubefpentia, inte- 

 gerrima. Pclioli oppofiti, vix femiunciales, 

 magis pilofi, fuperne lineola concavatL 



Flores in fpicis terminalibus fefTilibus, laxe im- 

 bricatis. Bra5feis ovatis et fubrotundo-ova- 

 tis, planiufculis, apice leviter patulis, acu- 

 minatis, trinerviis, margine pubefcenti- cilia- 

 tis, cum pilis foras, fed tenerrimis ramuf- 

 culis. 



Cal. Perianthium monopbyllum, breve, ad 

 bafin fere unam quartam partem partitum: 

 laciniis fu^fum fetaceis, anguflilTimis. 



Cor. monopetala, tubulata, inaequalis. Tubus 

 iongus filiformis, anguilus, calyce duplo 

 triplove longior, furfum leviter arcuatus, 

 tener. Limhus eredo-patens, tubi longitu- 

 dine, ad bafin quadripartitus : lacinla fupe- 

 riore lanceolata, acuta, concava, paulullum 

 adlicendente. 



Sem. Pilamenta duo, capillaria, ad medium 

 limbi attingentia, labio fupcriori paraliela 



et 



