1	"Fruits capsules, erect to recurved; flowers erect"	Datura
1	"Fruits berries, hanging; flowers hanging"	2
2	"Flowers 2.5–3.5 cm long; corollas always yellow"	"Trompettia {Trompettia cardenasiana}"
2	"Flowers > 3.5 cm; corolla rarely yellow"	Brugmansia