Question: Do the genuses Argyreia and Lavandula belong to the same family?
Context: Peperomia argyreia, the watermelon peperomia or watermelon begonia, is a species of plant in the Piperaceae family.  Its native range is Bolivia, Brazil, Ecuador, and Venezuela. Lavandula latifolia, known as broadleaved lavender, spike lavender or Portuguese lavender, is a flowering plant in the family Lamiaceae, native to the western Mediterranean region, from central Portugal to northern Italy (Liguria) through Spain and southern France.  Hybridization can occur in the wild with English lavender ("Lavandula angustifolia"). Lavandula stoechas (French lavender, Spanish lavender, or topped lavender) is a species of flowering plant in the family Lamiaceae, occurring naturally in Mediterranean countries. A loline alkaloid is a member of the 1-aminopyrrolizidines (often referred to as lolines), which are bioactive natural products with several distinct biological and chemical features.  The lolines are insecticidal and insect-deterrent compounds that are produced in grasses infected by endophytic fungal symbionts of the genus "Epichloë" (anamorphic species: "Neotyphodium").  Lolines increase resistance of endophyte-infected grasses to insect herbivores, and may also protect the infected plants from environmental stresses such as drought and spatial competition.  They are alkaloids, organic compounds containing basic nitrogen atoms.  The basic chemical structure of the lolines comprises a saturated pyrrolizidine ring, a primary amine at the C-1 carbon, and an internal ether bridge—a hallmark feature of the lolines, which is uncommon in organic compounds—joining two distant ring (C-2 and C-7) carbons (see Fig. 1).  Different substituents at the C-1 amine, such as methyl, formyl, and acetyl groups, yield loline species that have variable bioactivity against insects.  Besides endophyte–grass symbiota, loline alkaloids have also been identified in some other plant species; namely, "Adenocarpus" species (family Fabaceae) and "Argyreia mollis" (family Convolvulaceae). Argyreia is a genus of plants in the Convolvulaceae family. Lavandula pinnata (sometimes called fernleaf lavender ) is a plant in the mint family, Lamiaceae. Lavandula dentata is a species of flowering plant in the Lamiaceae family, native to the Mediterranean, the Atlantic islands and the Arabian peninsula.  Growing to 60 cm tall, it has gray-green, linear or lance-shaped leaves with toothed edges and a lightly woolly texture.  The long-lasting, narrow spikes of purple flowers, topped with pale violet bracts, first appear in late spring.  The whole plant is strongly aromatic with the typical lavender fragrance. Lavandula rotundifolia is a species of lavender flowers that belong to the Lamiaceae family.  The species is endemic to Cape Verde.  Its last form of the scientific name means a rounded leaf.  The species was named by George Bentham in 1833. Lavandula (common name lavender) is a genus of 47 known species of flowering plants in the mint family, Lamiaceae.  It is native to the Old World and is found from Cape Verde and the Canary Islands, Europe across to northern and eastern Africa, the Mediterranean, southwest Asia to southeast India.  Many members of the genus are cultivated extensively in temperate climates as ornamental plants for garden and landscape use, for use as culinary herbs, and also commercially for the extraction of essential oils.  The most widely cultivated species, "Lavandula angustifolia", is often referred to as lavender, and there is a color named for the shade of the flowers of this species. Lysergol is an alkaloid of the ergoline family that occurs as a minor constituent in some species of fungi (most within "Claviceps"), and in the morning glory family of plants (Convolvulaceae), including the hallucinogenic seeds of "Rivea corymbosa" (ololiuhqui), "Argyreia nervosa" (Hawaiian baby woodrose) and "Ipomoea violacea".  Lysergol is not a controlled substance in the USA.  Its possession and sale is also legal under the U.S. Federal Analog Act because of it does not have a known pharmacological action or a precursor relationship to LSD, which is a controlled substance.  However, lysergol can be utilized as an intermediate in the manufacture of some ergoloid medicines (e.g. nicergoline).
Answer: no