3 ENGELMANN—CUSCUTA. [453] 
Systematic Arrangement of the Species of the Genus 
Cuscuta, with age tong) al Remarks on old species and Des- 
criptions of new on 
By Grorecze Encetmann, M.D. 
he pecan ae which furnish good grounds for a subdivis- 
ion of the genus, are found in the shape of the styles and stig- 
mata and in the fruit. These same characters, it must be ad- 
mitted, have been used in separating the old Convolvuli into ° 
dj 
numerous genera and even tribes; so that eae would jus- 
era, in his Mono h snd in De Candolle’s Prodromus, 
admits the propriety of a Cuscuta sco Spitting 
onvolvulus into numerous genera may be excused, or per 
be pleaded in regard to such a ——o chairs recognized, an 
not too numerous genus, as Cuscu 
The subdivisions proposed are nd, as has been stated,on 
eule.*** 
the shape of the styles and stigmata, and on the ¢ 
The styles, typically always Senki usually are distinct ; or 
they are united in their whole length, or nearly so ey are 
of equal thickness throughout, or are thicker at base (sub- 
ulate from a thick base; ; or we find them capitate (or, as they 
are often iba ough avoagiy: called, globose), hemispherical, or 
somewhat flattened on the u pper, and flattened or a im- 
In 
a single species, the stigmatic surface of the dilated top of the: 
style is lobed, and in the centre somewhat depressed. 
