collegium musicum. a group of usually amateur musicians, often connected with a university, who meet to study and perform chiefly old or little-known music.
Spores and Sporangium. Ferns differ from flowering plants and trees because they do not produce seeds. Instead, ferns reproduce using spores. The sporangium is the structure responsible for producing and releasing spores. Sporangium form in many different ways, sometimes appearing as brown fruitdots on the undersides of leaves. Others grow as slender stalks up from the plant. When the sporangia burst, the wind carries spores to new ground, where they form reproductive structures that, if fertilized, will grow into a new fern.
â¢ Some ferns have sporophytes that are as large as trees. â¢ The gametophytes of ferns are thin, green, heart-shaped plants that are less than 1 cm across. ï The sporophytes produce spores in sporangia. â¢ In horsetails and club mosses, sporangia develop in cone-like structures.eproductive Structures of Seed Plants ï Reproduction in seed plants (gymnosperms and angiosperms) is very different from reproduction in seedless plants. ï You need a microscope to see the gametophytes of seed plants. ï Spores are not released from seed plants.