An ordinary Petri net is a bipartite directed graph composedof places, drawn as circles, and transitions, drawn as bars. A formal denitionfollows [3]:Denition 2.1 An ordinary Petri Net (PN) is a 5-tuplePN = (P;T;I ;I + ;M 0) where:1. P = fp 1 ;p 2 ;:::;p n gis a nite and non-empty set of places,2.
The Colors of Geraniums. Geraniums come in a host of colors, from the traditional white, red and pink to the more exotic orange and purple. Geraniums (Pelargonium spp.) are popular garden favorites that can be cultivated throughout all the USDA hardiness zones as annuals or year-round as indoor plants.
* Widely-grown and commonly misnamed geraniums should be called Pelargoniums.. More on The Geranium Family (Geraniaceae) & the Genus Pelargonium By Wayne Handlos, Ph.D. The geranium family consists of several genera of plants commonly referred to as geraniums or cranesbills.hese plants have become popular among the cactus and succulent growers. Types of Pelargonium s: Zonal geraniums * (Pelargonium x hortorum), Ivy geraniums * (Pelargonium peltatum), Carnation flowered geraniums* The petals of these flowers have a toothed or fringed edge.