. The British fern gazette. Ferns. WILMANNS & RASBACH : PTER I DOPH YTES OF SAO MIGUEL 327 Diplazium caudatum (Cav.) Jermy o / (L), M / W Fig. 5,15 To be found regularly in ravines or similar places with high air humidity. The plant grows always under a tree canopy, and as it can still thrive under Hedychium it must be rather shade-resistent. It reaches up to 2 m. Lunathyrium japonicum agg. {Diplazium allorgei Tardieu-Blot) c/(L), M/S, W Fig. 5,16 If one sees this fern for the first time one may take it for a Thelypteris, because its form is similar to a large Thelypteris phegopteris. But
. The British fern gazette. Ferns. WILMANNS & RASBACH : PTER I DOPH YTES OF SAO MIGUEL 327 Diplazium caudatum (Cav.) Jermy o / (L), M / W Fig. 5,15 To be found regularly in ravines or similar places with high air humidity. The plant grows always under a tree canopy, and as it can still thrive under Hedychium it must be rather shade-resistent. It reaches up to 2 m. Lunathyrium japonicum agg. {Diplazium allorgei Tardieu-Blot) c/(L), M/S, W Fig. 5,16 If one sees this fern for the first time one may take it for a Thelypteris, because its form is similar to a large Thelypteris phegopteris. But the type of indusium and two bundles in the petiole are athyrioid characters; also typical are the glandular, hairy leaves. We thank Clive Jermy (London) for his identification, who recently wrote to us "I am indebted to Dr. Sledge (University of Leeds) for drawing my attention to the similarity of the Azores plants to that called Diplazium lasiopteris Kunze in Ceylon, (as, in fact, had been suggested by Christ: Bull. Geogr. bot. Mans 17: 159; 1907) but until further studies are made on the group I would suggest you use the aggregate name L japonicum (Asplenium japonicum Thunb.) on which Kurata (J. ;. FIGURE 16: Lunathyrium japonicum. Geobot. 9: 99; 1961) based his genus Diplazium esculentum (Retz.) Swartz vr / M / R Only found once; in a rivulet bed with organic waste in Caldeiras, in a locality with temperatures above the average; this fits to the palaeotropical character of this fern. We found it without sporangia, but we could identify it without doubt by the partly anastomosing nerves of the pinnulae. Cystopteris fragilis (L.) Bernh. var. diaphana (Bory) r / H / F Fig. 7 One of the most hygrophilous ferns: in fissures of lava rock in gorges with dripping water or facing northwards; in the district eastwards of Sete Cidades and south of the Pico da Vara. Polystichum setiferum (Forsskal) Woynar c / L, M / S It is, as in Brittany, a plant of open
Size: 1394px × 1792px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectferns, bookyear1909
