. Notes on the life history of British flowering plants. Botany; Plant ecology. 204 BRITISH FLOWERING PLANTS UMBELLIFEKJ*: The Umbelliferse are generally herbaceous, and the leaves are much subdivided. There are, however, some exceptions. Hydrocotyle is a marsh plant growing on wet mud or floating in water, and the leaves are round like those of a small water-lily. Bupleurum also has undivided leaves, and one South European species, the only shrubby one in the family, has leathery leaves like those of a Laurel. The fruits are sometimes winged, as in Angelica ; sometimes covered with spines or
. Notes on the life history of British flowering plants. Botany; Plant ecology. 204 BRITISH FLOWERING PLANTS UMBELLIFEKJ*: The Umbelliferse are generally herbaceous, and the leaves are much subdivided. There are, however, some exceptions. Hydrocotyle is a marsh plant growing on wet mud or floating in water, and the leaves are round like those of a small water-lily. Bupleurum also has undivided leaves, and one South European species, the only shrubby one in the family, has leathery leaves like those of a Laurel. The fruits are sometimes winged, as in Angelica ; sometimes covered with spines or hooks, as in the Carrot, Anthriscus, or Sanicula. The plants belonging to this group possess two great advantages, namely, first, the association of the numerous small flowers into com- paratively large flat heads, by which they are made much more conspicuous ; and secondly, they all secrete honey in the centre of the flower on a flat disk (Fig. 142), which is thus accessible to all insects, even those with the shortest lips. This is an advantage, as it efi'ects a con- siderable saving of time, enabling the insects to visit a given number of flowers more rapidly, and consequently rendering their fertilisation more certain than â, .. ,^, ifthey stood singly. But though Fig. 141.âWild Chervil (OAcem- ,, J -. &â '.,. ° phyiinm syivistre). Leaf and the Order IS SO I'lch m genera inflorescence (reduced) vvitii ,^^^ spccies, it is Comparatively flower and fruit. â n n , i t â ⢠p uniiorm, and the divisions are tor the most part characterised by the form and structure of the fruit. The flowers are generally small; the petals, 5 in number, are inserted round a little fleshy disk; the stamens, also 5, alternate with the petals. The self-fertilisation which, in small flowers such as. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly
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Keywords: ., bookauthorlub, bookcentury1900, bookdecade1900, booksubjectbotany
