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Perule: A leaf-bud scale.* Perules protect the young leaves through the winter. They will soon be falling away as the leaves begin to grow. *Harris, J.G., Harris, M.W. (2001). Plant …

Geophyte: A plant that survives an unfavourable period by means of underground food-storage organs (e.g. rhizomes, tubers, and bulbs). Buds arise from these to produce new aerial shoots when favourable growth …

Corona: Petal-like or crown-like structures between the petals and stamens in some flowers.* The ‘trumpet’ part of daffodils (Narcissus spp.), for example.   *Harris, J.G., Harris, M.W. (2001). Plant identification …

Galochrous: Milk-white in colour. Galanthus (snowdrops) are blooming in the garden. The genus name Galanthus comes from Greek gala, milk + anthos, flower. Allaby, M. (2006). A dictionary of plant sciences (Revised ed.). …

Ternate: Divided in three; e.g., trifoliate leaf.* Shamrocks, or clovers, have ternate leaves. Happy St. Patrick’s Day! *Pell, S.K., Angell, B. (2016). A botanist’s vocabulary: 1300 terms explained and illustrated. …

Plumule: (Syn. epicotyl) The portion of the embryo above the point of attachment of the cotyledon(s) which gives rise to the shoot.* In the image above, the plumule is emerging …

Sarcous: Fleshy.* Succulents and cacti are typically very fleshy plants. This Aloe vera has sarcous leaves, prized for their skin-soothing properties. *Harris, J.G., Harris, M.W. (2001). Plant identification terminology: An …

Stipe: 1. In ferns, the stalk of the frond, equivalent to the petiole of seed plants; 2. In orchids, the stalk-like connection between the viscidium and the pollinia.* This potted, …

Schizocarp: A dry fruit which splits into separate one-seeded segments (carpels) at maturity.* The image shows the various stages of development of fennel from flowers through to seeds. What is …

Pericarp: The fruit wall, derived from the ovary wall and consisting of up to three layers: exocarp, mesocarp, and endocarp.* Peaches are a type of fruit called a drupe. In …