PHYSICAL AND LITERARY. 151 



DESCRIPTIO. 



Radix perennis, horizontalis, fimplex, 

 inaequalis, fibrillis plurimis, longis. 



Gaul IS fimplex, eredlus, teres, membra- 

 nis quatuor e bafi foliorum decur- 

 rentibus inftrudlus ut quadrangu- 

 laris videatur ; fcaber, annuus. 



Folia ovato-lanceolata, acuminata, in- 



tegerrima, nuda, glabra, venofa, fef- 



filia, levitcr decurrentia, oppofita, 



. patentia. Par infimum minimum, 



obverfe cordatum. 



Inflorescentia. Spicse fecundge, ter- 

 minales, fquamis parvulis ex oppo« 

 fito. 



Calyx Perianthium pentaphyllum, foli- 

 olis linearibus, longis, fubulatis, 

 acutis, bafi craffis, perfiftentibus. 

 Corolla monopetala, tubulofa, decidua. 

 Tubus calyce longior, inferne an- 

 guftus, bafi tamen ampliata, gibba, 

 fuperne ventricofus, quinquangu- 



latus, 



