Abstract
Caesalpinia pulcherrima'. It was further stated that it grew in association with a Ptychogaster-state, and that it should be placed in the section Hispidi of the genus Xanthochrous Pat. This section has subsequently come to form the basis of the more natural genus Inonotus Karst., of which only one species is known to form chlamydospores, namely L rickii (Pat.) Reid, described from Brazil. Examination of type material of Polyporus calcuttensis has confirmed that the two species are synonymous. The perfect states of both fungi consist of imbricate pilei bearing numerous, golden-brown, broadly ellipsoid basidiospores, 6-5-8 x 4'5-6 (7 X 5)1k; similar loosely arranged context hyphae, 3-8.-5[ diam., ribbon-like though fairly frequently branched; and the same thick-walled, brown chlamydospores, highly variable in shape and size, found either in elongate, radial cavities within the context, or within the tube-layer, interspersed amongst the hymenial structures. Typical of many species of this genus, and of closely allied genera, e.g. Phellinus, numerous setal-hyphae are produced in the tube-trama. However, setal-hyphae are also occasionally present in other parts of the sporophore. On the surface of the pileus of P. calcuttensis, there is a distinct palisade-like layer of vertically arranged setal-hyphae, together with loosely arranged, pale coloured hyphae (Fig. I/I, p. 40). The majority of these setal-hyphae are simple and directly comparable to those produced in the tube-trama, but occasionally there may be isolated branching, usually towards the base (Fig. 1/2). Nevertheless these setal-hyphae are quite different from the highly branched setigerous elements found on the pileus surface of L cuticularis (Bull. ex Fr.) Karst. Since previous descriptions of L rickii fail to mention the presence of setal-hyphae on the surface of the pileus, a re-investigation of all available material became necessary to check the reliability of this character. The following observations were made on collections deposited in the Kew herbarium:
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