136 BOTANY. 
Example: *Solidago. Division 4, Solenogynee. Example: Lepto- 
thamnus. 
Sub-tribe 2. Baccharidee. Heads diccious, or heterogamous, never 
radiate; pistillate flowers tubular, slender, or filiform, in several series. 
Receptacle not chaffy. Anthers not caudate. Division 1. Conyzee. a, 
Spheranthee. Example: Athroisma. b,Grangeinee. Example: Grangea. 
c, Euconyzee. Example: *Conyza. d, Eubaccharidee. Example: 
*Baccharis. | «ss plies 
Sub-tribe 3. Tarchonanthee. Heads dicecious, or heterogamous, never 
radiate ; pistillate flowers, tubular and very slender, mostly in several series. 
Anthers caudate. Division 1. Eutarchonanthee. Example: Tarchonan- 
thus. Division 2. Plucheine@. Example: *Pluchea, *Micropus. 
Sub-tribe 4. Inulee. Heads heterogamous and _ radiate, or homogamous 
and discoid, never dicecious. Receptacle not chaffy. Anthers caudate. 
Leaves alternate. Division 1. Euinulee. Example: *Inula. Division 2. 
Cesulinee. Example: Cesula. 
Sub-tribe 5. Bupthalmee. Example: Bupthalmum. 
Sub-tribe 6. Eclyptee. Heads heterogamous, radiate. Receptacle 
chaffy. Anthers not caudate. Pappus toothed, or awned, or none. Leaves 
opposite. Examples: *Borrichia, *Eclipta. 
Tribe 4. Senecionidee. Style of the perfect flowers cylindraceous: the 
branches linear, truncate at the summit, and penicillate, or often produced 
into a conical or elongated hispid appendage; the stigmatic lines rather 
broad and prominent, extending to the commencement of the appendage or 
hairy portion. 
Sub-tribe 1. Melampodinee. Flowers all unisexual: the staminate and 
pistillate either occupying the same or different heads, in the same or 
different individuals. Anthers not caudate. Pappus never of bristles. 
Division 1. Euzeniee. Example: Euxenia. Division 2. Milleriee. 
Example: *Blennosperma. Division 3. Silphiee. Examples: *Silphium, 
*Engelmannia. Division 4. Melampodiee. Uxample: *Melampodium. 
Division 5. Ambrosiee. Examples: *Ambrosia, *Xanthium. Division 6. 
Ivee. Example: *Iva. Division 7. Partheniee. Example: *Parthe- 
mum. 
Sub-tribe 2. Helianthee. Heads heterogamous and radiate, or homoga- 
mous and discoid. Receptacle partly or entirely chaffy. Pappus none, or 
coroniform, or awned, or of few squamelle. Anthers blackish, not caudate. 
Leaves often opposite. Division 1. Heliopsidee. Example: *Heliopsis. 
Division 2. Rudbeckiee. Example: *Rudbeckia. Division 3. Coreop- 
sidez. Example: *Coreopsis. Division 4. Bidentidee. Example: 
*Bidens. Division 5. Verbesinee. Vixample: *Spilanthes. 
Sub-tribe 3. Flaveriee. Ueads one-, few-flowered, densely aggregated, 
heterogamous. Leaves opposite. Example: *Flaveria. 
Sub-tribe 4. Tagetinee. Heads heterogamous and: radiate, or homoga- 
mous and discoid. Receptacle not chaffy. Pappus awned or setose. 
Involucre, with the scales in a single series, and mostly united. dotted, like 
the opposite leaves, with large pellucid glands. Division 1. Tugetee. 
136 
