ABSTRACT
In terms of nutrition, many of the vegetables in question are of critical dietary importance, and in terms of the of the hot-cold system, most are cold, and some, especially watercress, are very cold. Such very-cold vegetables should not be given to young babies or eaten by mothers after delivery or when nursing. They should be eaten only in small amounts by old people. They are, however, regarded as very effective in treating hot illnesses (Koo, 1973: 141; Yeung et al., 1973: 198; B. Chang, 1974: 437, 438; E. N. Anderson and M. L. Anderson, 1976: 148; E. N. Anderson and M. L. Anderson, 1977: 368; M. Mathews and L. Manderson, 1981: 12-13; Tan and Wheeler, 1983: 41, 44; Wheeler and Tan, 1983: 52, 54-55; E. N. Anderson, 1988: 128, 191).
them by Herklots (1972: 182-224). That author first distinguishes the Asiatic forms from the common European forms of Brassica oleracea (which include European cabbage, kale, brussels sprouts, broccoli, savoy cabbage, cauliflower, and kohlrabi). Wending his way through the considerable differences of opinion among botanists, he then divides the Asiatic forms into five species, four of which he identifies as Chinese:
