Floral structure and pollen grains Giant Alocasia Alocasia macrorrhizos (L.) G. Don Chinese Violet Asystasia micrantha (Nees) Y. F. Deng & N. H. Xia White Bauhinia Bauhinia variegata L. var. candida (Aiton) Buch.-Ham. Brazil Bougainvillea Bougainvillea spectabilis Willd. Japanese Camellia Camellia japonica L. Chinese Hawthorn Crataegus pinnatifida Bunge Loquat Eriobotrya japonica (Thunb.) Lindl. Night-blooming Cereus (cultivar) Hylocereus sp. Gairo Morning Glory, Morning-glory Ipomoea cairica (L.) Sweet Machilus Machilus chekiangensis S. K. Lee Banana Shrub Michelia figo (Lour.) Spreng. Birdwood's Mucuna Mucuna birdwoodiana Tutcher Kwai-fah Osmanthus fragrans (Thunb.) Lour. Hairy Knotweed Persicaria barbata (L.) H. Hara Lovely Knotweed Persicaria jucunda (Meisn.) Migo Hong Kong Hawthorn Rhaphiolepis indica (L.) Lindl. Rose Myrtle Rose Myrtle (Aiton) Hassk. Double-fruited Cassia Senna bicapsularis (L.) Roxb. Goat Horns Strophanthus divaricatus (Lour.) Hook. & Arn. Turpinia arguta Turpinia arguta (Lindl.) Seem. Shiny-leaved Prickly Ash Zanthoxylum nitidum (Roxb.) DC. Perpetual Begonia Begonia cucullata Willd. var. hookeri (Sweet) L. B. Sm. & B. G. Schub. Common Banana Musa × paradisiaca L. Tree Cotton Bombax ceiba L. Southern Magnolia Magnolia grandiflora L. Oyster Plant Tradescantia spathacea Sw. Mother-in-Law’s Tongue Sansevieria trifasciata var. laurentii (De Wildem.) N. E. Brown Chinese Lasianthus Lasianthus chinensis (Champ. ex Benth.) Benth. Day-lily Hemerocallis fulva (L.) L. Dwarf Date Palm Phoenix roebelenii O'Brien