38. Corylaceous Plants. Corylaceae

* Male flowers in globose catkins; (anthers 2-celled.)

(85) Fagus - female flowers two or three together in the centre of a scaly four-lobed prickly involucre; stigmas three, filiform.

** Male flowers in long cylindrical catkins. † Anthers two-celled.

(86) Quercus - female flowers solitary, within cup-shaped scaly at length indurated involucres; stigmas three, oblong.

Ft Anthers one-celled.

(87) Corylus - female flowers crowded in short bud-like catkins; involucre of one piece, at length enlarged, leafy and jagged, containing a single nut; stigmas two, filiform.

(88) Carpinus - female flowers in a lax catkin; involucre of two distinct at length enlarged leaves, containing two nuts; stigmas two, filiform.

39. Coniferous Plants. Coniferae

* Fruit a dry cone, with two winged seeds under each scale.

(89) Pinus - male catkins cylindrical, with two anther-cells to each scale.

** Fruit small, succulent, containing two or three hard seeds.

(90) Juniperus - male catkins small, with four anther-cells to each scale.

40. Taxaceous Plants. Taxaceae

(91) Taxus - male catkins small, with three to eight anther-cells to each of the upper scales.

41. Araceons Plants. Araceae

(92) Arum - flowers densely packed on the lower part of a columnar spike (spadix), which is enclosed in a spathe or leafy sheath.

42. Iridaceous Plants. Iridaceae

* Stigmas 3-parted slender, deeply 2-cleft.

(93) Trichonema - perianth with a very short tube, and a limb of six deep equal segments.

** Stigmas 3-parted; segments widening upwards, convolute.

(94) Crocus - perianth with a slender tube, which is twice as long as the six-parted equal limb.

43. Amaryllidaceous Plants. Amaryllidaceae

* Perianth with a cup-shaped coronet or crown in the mouth of its tube.

(95) Narcissus - perianth tubular at the base, the six-parted limb spreading.

** Perianth without a coronet.

(96) Galanthus - perianth divided to the base, the three outer segments larger than the three inner.

(97) Leucojum - perianth divided to the base, the six segments equal.

44. Orchidaceous Plants. Orchidaceae

* Plants scaly, leafless, brownish; (pollen simple or in slightly cohering granules.)

(98) Neottia - flowers small; lip spurless, two-cleft, longer than the sepals.

** Plants having green leaves; (pollen cohering in grains or masses, which are indefinite in number and waxy.)

† Central anther perfect, the two lateral ones abortive.

‡ Lip spurred at the base.

(99) Orchis - lip lobed; pollen-masses with two glands enclosed in a common pouch.

‡‡ Lip not spurred.

(100) Ophrys - lip lobed, convex, usually hairy and figured resembling the body of an insect; pollen-masses with two glands each, enclosed in a separate pouch.

†† Central anther abortive, the two lateral ones perfect.

(101) Cypripedium - lip large, inflated, pouch-like.