11. In asexual reproduction, sporangiospores are produced inside a spherical structure, the sporangium . 12. They are known for their strong phototropism response and helical growth of the sporangium . 13. When conditions improve, however, they germinate to produce a sporangium or vegetative hyphae. 14. Luebke ( the Georgia quillwort ) but can be distinguished by its unpigmented sporangium wall. 15. Seed plant microgametophytes consists of two or three cells when the pollen grains exit the sporangium . 16. In fungi, a sporangium is produced at the end of a sporangiophore that sheds spores. 17. The zygote bearing host cells divide, forming eventually the walls of a new winter sporangium . 18. Spores were released through a slit opening along the margins of the two valves of a sporangium . 19. Spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. 20. In bryophytes, the sporophytes are always unbranched and produce a single sporangium ( spore producing capsule ).
