The Encyclopaedia Britannica; .. A dictionary of arts, sciences and general literature . This takes place either byclefts, by hinges, or by pores. V/hen tho anther-lobes areerect, tho cleft takes place lengthwise along the line of thesuture, constituting longitudinal dehiscence (fig. 175). Atother times the slit takes place in a horizontal manner,from the connective to the side, as in Alchemilla arvensis(fig. 223) and in Lemna ; the dehiscence is then the anther-lobes are rendered horizontal by theenlargement of the connective, then what is really longi-tudinal dehiscence may a
The Encyclopaedia Britannica; .. A dictionary of arts, sciences and general literature . This takes place either byclefts, by hinges, or by pores. V/hen tho anther-lobes areerect, tho cleft takes place lengthwise along the line of thesuture, constituting longitudinal dehiscence (fig. 175). Atother times the slit takes place in a horizontal manner,from the connective to the side, as in Alchemilla arvensis(fig. 223) and in Lemna ; the dehiscence is then the anther-lobes are rendered horizontal by theenlargement of the connective, then what is really longi-tudinal dehiscence may appear to be transverse. In othercases, when the lobes are united at the base, the fissure iaeach of them may be continuous, and the two lobes mayappear as one. The cleft does not always proceed thewhole length of the anther-lobe at once, but often for a timeit extends only partially. In other instances the openingis confined to the base or apex, each loculament openingby a single pore, as in Pyrola, Tetratheca juncea, Rhododen-dron, Vaccinium, and Solanum (fig. 224), where there are. Fig. 222. Fig. 225. Fio. 221.—Two stamens of Pansy f TiVa {ricoJor), with their two anther lobes aotl the process p extending beyofia them. One of the stamens has been deprive* of Its spur, the other shows Its spur, e. , , .. , Fio. -Anther of Salvia ofirinalis. If, fertile lobe fnll of pollen; f«, barren lobe without pollen: c. distractile connective; /. 223. Stamen of Lady*5 ManUo (_Alchemilla)^ with tho anther opening 224.—Stamen of a species of Nightshade (Solanum), snowing the divergence of the anther-lobes at the base, and the dehiscence by pores at the apex 225. The stamen of the Ba^beiTy (BcrberxA rulgat-ii), showing one of the valves of the anther v, curved upwards, bearing the pollen on its inner eitrface. two, and Poranthera, where there are four ; whilst in theJlistleto the anther has numerous pores for the dischargeof tho pollen. Another
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