Volume 83, 1955-56
– 252 –
![Thumbnail: [Volume 83, 1955-56 page 252]](/journals/rsnz/images/rsnz_83/thumbnails/rsnz_83_02_0282_0252_ac_02.gif)
Key to Species
| Section Pedicellatae: Cystidia crystal coated, carried upon simple pedicels. | |
| Context hyphae coloured brown, firmly compacted into a ceraceous tissue; spores suballantoid; clamp connexions present. | |
| Gloeocystidia absent. | |
| Branched paraphysate hyphae present; spores 9-12 × 4-4.5μ | 1. P. lycii (Pers.) H. & L. |
| Branched paraphysate hyphae absent; spores 7-8.5 × 3-3.5μ | 2. P. cinerca (Fr.) Cke. |
| Gloeoeystidia present; branched paraphysate hyphae absent; spores 7-9 × 3-3.5μ | 3. P. nuda (Fr.) Bres. |
| Context hyphae hyaline. | |
| [ unclear: ] present. | |
| [ unclear: ] present. | |
| Spores pip-shaped, 5-6 × 3-3.5μ; cystidia conical, coarsely crystal coated, 40-60 × 12-20μ | 4. P. vesiculosa G. II. Cunn. |
| Spores cylindrical, 11-14 × 3.5-4μ; [ unclear: ] subulate, finely crystal coated, 60-112 × 12-16μ | 5. P. utriculosa G. H. Cunn. |
| Spores broadly elliptical, 5-6 × 3-4μ; cystidia conical, coated with rodshaped deciduous crystals imbricately arranged, 16-24 × 5-8μ | 6. P. verecunda G. II. Cunn. |
| Vesicles absent. | |
| Basal layer scanty. | |
| Gloeocystidia oval on elliptical; cystidia ovate or elliptical; spores globose, verrueulose | 7. P. [ unclear: ] G. H. Cunn. |
| Gloeocystidia fusiform, arising mainly from the basal layer and traversing the context; cystidia fusiform; spores elliptical, smooth | 8. P. [ unclear: ] (Pers.) Karst. |
| Basal layer strongly developed. occupying more than half the context; gloeocystidia fusiform; cystidia conical; spores elliptical, smooth | 9. P. coprosmae G. H. Cunn. |
| Gloeocystidia absent. Cystidia coarsely crystal coated, most submerged. | |
| Cystidia crowded in the context, either arranged in many definite layers, or in overlapping irregular zones. | |
| Context hyphae with clamp connexions. | |
| Cystidia crowded into numerous overlapping layers. | |
| Cystidia conical, 16-35 × 9-12μ; spores elliptical, 6-7 × 3.5-4μ | 10. P. scintillans G. H. Cunn. |
| Cystidia cylindrical, 24-72 × 8-14μ; spores pip-shaped, 4-5 × 3-3.5μ | 11. P. cerebrosa G. H. Cunn |
| Cystidia arranged in several definite layers with bands of parallel hyphae between, cylindrical. 16-24 × 7-9μ: spores elliptical. 7-8 × 4-4.5μ | 12. P. totara G. H. Cunn. |
– 253 –
![Thumbnail: [Volume 83, 1955-56 page 253]](/journals/rsnz/images/rsnz_83/thumbnails/rsnz_83_02_0283_0253_ac_02.gif)
| Context hyphae without clamp connexions | |
| Context containing many bands of brown mucilage, appearing zoned; cystidia conical, 30-50 × 10-16μ; spores elliptical, 4-5.5 × 2-2.5μ | 13. P. crustosa Cke |
| Context containing numerous lacunae each enclosing a cystidium; cystidia fusiform, 24-45 × 10-16μ; spores obovate, 6-8.5 × 5-6μ | 14. P. sacrata G. H. Cunn. |
| Context with cystidia arranged in several overlapping zones; cystidia cylindrical, septate, 40-90 × 6-10μ; spores elliptical, 7-9 × 3.5-4μ | 15. P. erucaeforma G. H. Cunn. |
| Cystidia scattered, not crowded in rows or overlapping layers, confined to the hymenium, subhymenium or upper part of the intermediate layer | |
| Context hyphae stout, to Sμ diameter, without clamp connexions | |
| Context hyphae delicately crystal coated, or naked towards the base | 16. P. cremea (Bres) Sacc. & Syd. |
| Context hyphae coated with brown mucilaginous granules soluble in alkalies | 17. P. filamentosa (B. & C.) Buit |
| Context hyphae 3-4μ diameter, with clamp connexions. | |
| Cystidia aculeate, 100μ or more in length. covered with scattered flattened crystals. | |
| Spores elliptieal, 7-9 × 4-5μ | 18. P. sororia G. H. Cunn. |
| Spores rod-shaped. 14-17 × 2-2.5μ | 19. P. longispora (Pat.) Hoehn. |
| Cystidia cylindrical, crystal coated, 30-50 × 5-8μ; spores broadly elliptical, 5-6 × 3.5-4μ | 20. P. sambuci (Pers.) Buit |
| Section Radicatae: Cystidia either naked, enmeshed in loose hyphal sheaths, or delicately rugulose-etched (sometimes crystal coated in P. vermiclaris), projecting for the greater part of their length; sessile and attached by lateral outgrowths from their bases. | |
| Cystidia deheately rugulose-etched, subulate. exceeding 120μ in length. | |
| Spores smooth oval on pyriform, 7-11 × 6-9μ | 21. P. gladiola G. H. Cunn. |
| Spores verrueulose, elliptreal. 5-6 × 4-4.5μ | 22. P. hastat G. H. Cunn. |
| Cystidia subulate, enmeshed in hyphal sheaths. | |
| Spores flexuous-naviculate, 18-26 × 5-5.5μ | 23. P. vermifera Bourd. |
| Spores lunate, 9-11 × 3.5-4μ | 24. P. vermicularis Wakef. |
| Cystidia cylindrical, with rounded or modified apices. naked or (in P. thermomctra) enmeshed in hyphal sheaths. | |
| Spores verruculose, oval; basal layer well dedeveloped. intermediate layer suppressed | 25. P. rimicola (K) H. & L. |
| Spores smooth, allantoid, elliptical or globose; basal layer scanty; intermediate layer present or absent. | |
| Spores suballantoid. | |
| Cystidial wall not more than 2μ thick | 26. P. subalutacea (K.) H. & L. |
| Cystidal wall so thickened that the lumen is capillary save at the modified apex | 27. P. gracillima Ell. & Ev. |
– 254 –
![Thumbnail: [Volume 83, 1955-56 page 254]](/journals/rsnz/images/rsnz_83/thumbnails/rsnz_83_02_0284_0254_ac_02.gif)
| Spores elliptical or obovate; cystidial apex crowned with a parasol of fused crystals | 28. P. umbracula G. H. Cunn. |
| Spores globose; cystidial wall so thickened that the lumen is capillary apex modified and inflated | 29. P. thermometra G. II Cunn. |