共 29 条
- [21] MOORE AC, 1903, BOT GAZ, V36, P383
- [22] MOTTIER DM, 1904, FECUNDATION PLANTS, P44
- [23] NEMEC B, 1899, BER DEUT BOT GES, V17, P311
- [24] PEIRCE GJ, 1899, P CALIF ACAD SCI, V3
- [25] PEIRCE GJ, 1903, TXB PLANT PHYSL, P115
- [26] SCHOTTLANDER P, 1892, COHNS BEITRAGE BIOL, V6
- [27] SHAW WR, 1898, BER DTSCH BOT GESELL, V16
- [28] STRASBURGER E, 1892, SCHWARMSPOREN GAMETE
- [29] WEBBER HJ, 1901, USDA BUREAU PLANT IN, V2, P77