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natural Family of Plants called Composite. 
two plants are the only published species of this genus, for which 
the name of Calea should be retained, and which may be distin¬ 
guished by the following characters : 
Calea. 
Caleae species Linnei. 
Involucrum* imbricatum. Receptaculum paleaceum. Flosculi 
tubulosi, uniformes, hermaphroditi. Antherce basi muticae. 
Stigmata acuta. Pappus paleaceus : radiis uninerviis, pinna- 
tifido-striatis. 
Frutices (Americae aequinoctialis,) pubescentes, scabri. Folia op- 
posita , indivisa. Capitula-f- corymbosa , v. terminalia , v. axillaria. 
Involucri subovatifoliola nervosa, obtusa. Paleae receptaculi convexi 
distinctce,fgura et textura fere involucri. Corollae luteo-purpurece 
(Swartz), glabrce, laciniis dinerviis. Achenium subcylindraceum 
v. obsolete angulatum, glabrum v. pubescens , callo baseos subobliquo. 
Pappus persistens albus , nitens; radiis simplici serie subulatis, 
indivisis , superne denticulatis. 
Obs. In Sir Joseph Banks’s Herbarium there are tw r o plants 
very nearly related to Calea , differing from it merely in having a 
radius of ligular female florets. If this difference be considered 
sufficient to constitute a genus, it may be named Caltacte. The 
first of these plants (C. urtici folia), with nearly ovate acute 
crenated leaves, found by Houston near Vera Cruz, is Solidago 
urticafolia of Miller, by whom it appears to have been culti¬ 
vated. The second, with deeply lobed or pinnatifid leaves 
(C. pinnatifida ), was lately sent from Brazil by Mr. Sellow. 
The second Linnean species, Calea oppositifolia, has very little 
affinity to the first. In attending merely to the technical cha¬ 
racter of Santolina, it might be referred to that genus ; but it dif¬ 
fers 
* Calyx communis Linnei. 
f Corolla communis Linn. 
