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Literature:
 
Page number:281 
Description type:Non-original description 
Description:Clavaria alcicornis Zollinger & Moritzi. 1844. NatuurGeneesk. Arch. Neerl.-Indie, p. 382.
Holotype: L - herb. Zollinger, "Ad terram prope Tjikoya", iii.184 . Plantae Javanicae no. 1125 ! merotype: FH [!].
Some years ago I (Petersen, 1967) reported that tramal hyphae and basidia were clamped on the FH portion of the type, but that no basidiospores were observed. On the original material at L, of which I had no knowledge in-1967, I can find no clamps on hyphae or basidia. The tramalhyphae are slightly inflated, thin-walled, simple-septate (occasionally apparently secondarily septate), short-celled and now adherent in sheets. The hymenium will not support observation, for the basidia are so gelatinized as to be shapeless, except for a rare apex protruding from the hymenial surface. One basidium was seen to be 4-sterigmate. A fruitbody is shown in Fig. 1.
Numerous basidiospores were present on the L material, however. They (Fig. 2) were 5.9-6.7 x 3.3-4.1 µm (E = 1.601.80; Em = 1.69; LM = 6.25 µm). Such spores, found in a taxon with clamps would lead one to Clavaria subg. Clavulinopsis or to Ramariopsis, but the construction of the trama was unlike that found in either genus, especially the relatively short cells with occasional secondary septa. Both characters, together with the very thin-walled spores, lead directly to Clavaria zollingeri, a branched Clavaria. I am of the firm belief that the specimen represents a rosy form of that taxon.
Is there a rosy "Clavulinopsis" in tropical Asia? Fawcett (1939) described C. pallidorosea, but I have been unable to locate an adequate type, and her description does not permit accurate placement of the taxon. Van Overeem's (1923) treatment of C. alcicornis was not entirely true to the original description, and I have not examined his specimens under that name.
 
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