184 Mr. D. Don’s Descriptions of new Genera and Species 
1. P. longifolia. 
Tragopogon sp. nova. Herb: Bt PB. 
In Peruvie alpibus. Ruiz et Pavon. 4. 
There is no genus with which this can well be compared: it 
has the involucrum of Tragopogon, and in habit it resembles 
Cynthia virginica*, the Troximon virginicus of Gzertner ; but the 
structure of its pappus and florets removes it from every genus 
to which it bears any affinity. The Scorzoneree are well distin- 
guished from the rest of Cichoracee by the very short, reniform 
appendage surmounting the anthers ; that organ in most of the 
other tribes having an oblong form. This interesting genus 
concludes the family of Cichoracee ; and we shall now proceed 
to the consideration of the Labiatiflore, which constitute a much 
more numerous and interesting portion of the collection. 
» Fam. 2.  LABIATIFLORXE. Dec. et Lag. t 
FLoscu it difformes, plerumque tubulosi: limbo sæpiùs bilabi- 
ato-partito, multinervio. 
ANTHER# appendiculá cartilagineá v. callosá, plerumque elon- 
gata terminate, basi biaristatze. 3 
Stigmata obtusa, Papilloso-pruinosa, rariüs partim v. omninó 
EN ppo rar des T E Sii 
Plante non lactescentes. - Folia. alterna. dias pU pur- 
purei. 
The Eübiatifiohar y were first proposed as a distinct group by 
Messrs. DeCandolle and Lagasca in the 19th volume of the 
** Annales du Muséum." Professor Lagasca having communi- 
cated to M; "DeCandolle. his remarks on this family, together 
with the essential characters of many new genera welcomes to 
* Edinb. Nis Phil. Journ. l.c. P. 309. 
it, 
) 
