This section is from the book "Commercial Gardening Vol4", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
Splendid shrubs of irregular growth, from China and Japan. F. suspensa (Fortunei) has long slender shoots wreathed with clear-yellow flowers in February and March. F. viridissima is a more bushy plant, 4-8 ft. high, with dark-green lance-shaped leaves and yellow flowers in March. F. intermedia is a hybrid between the two.