Johan Hermans

New species and new names in Malagasy orchids (Orchidaceae)

Summary. Four attractive new species, Cynorkis dens-serpens, Eulophiella longibracteata, Neobathiea comet-halei and Liparis vulturiceps, are described for the first time. The identities of Benthamia africana, B. spiralis, Cynorkis angustipetala, C. speciosa, C. cinnabarina, C. grandiflora and Jumellea stenoglossa and J. faciliorchis are clarified and the necessary taxonomic changes made.

Description of Four New Species of Bulbophyllum (Orchidaceae) from Madagascar

Abstract Four new orchid species from Madagascar are described and illustrated. Notes on the distribution, ecology, and conservation status are provided. Bulbophyllum uroplatoides Hermans & G. A. Fischer, B. histrionicum Reichenbach f. ex G. A. Fischer & P. J. Cribb, and B. senghasii G. A. Fischer & Sieder belong to section Calamaria Schlechter, whereas B. bryophytoides G. A. Fischer & Andriantiana belongs to section Lichenophylax Schlechter. Bulbophyllum uroplatoides Hermans & G. A. Fischer is related to B. cardiobulbum Bosser, but differs in the thickened racemes, overall plant size, the shape of the sepals, petals, and lip, and coloration. Bulbophyllum histrionicum Reichenbach f. ex G. A. Fischer & P. J. Cribb was previously recognized by Reichenbach as a new species, but was never formally described. It is characterized by its large, orbicular to somewhat ovoid pseudobulbs that are green flushed with red, large, ovate-oblong to ovate-lanceolate leaves, red floral bracts, long sepals, narrowly triangular petals, and glabrous lip. Bulbophyllum senghasii G. A. Fischer & Sieder has orbicular, non-compressed bifoliate pseudobulbs, flowers with greenish yellow sepals that are spotted with dark brown on the outside, and an elliptic lip that is not compressed in the middle and has erose rather than long-ciliate margins and falcate rather than straight stelidia. Bulbophyllum bryophytoides G. A. Fischer & Andriantiana is a very tiny plant distinguishable from other species of section Lichenophylax by its densely long-ciliate petals and its ciliate lip that lacks a median callus and has a glabrous surface.

New species and nomenclatural changes in Cynorkis (Orchidaceae: Orchidoideae) from Madagascar and the Mascarenes

SummaryTen new species, Cynorkis aconitiflora, C. christae, C. elephantina, C. jackyi, C. lentiginosa, C. mammuthus, C. mangabensis, C. sanguinolenta, C. siederi and C. syringescens, are described for the first time. The identity of C. elegans is clarified. The status of Arnottia and Physoceras are discussed and both subsumed into Cynorkis, with the necessary taxonomic changes made.

696. AERANTHES SCHLECHTERI

The taxonomy, habitat, distribution and cultivation of Aeranthes schlechteri Bosser are discussed. A full description and an illustration are provided.

650. CYNORKIS GUTTATA

Summary. Cynorkis guttata Hermans & P. J. Cribb in Cynorkis sect. Gibbosorchis, a recently-described orchid from Madagascar, is illustrated. The identities of Cynorkis purpurascens Lindl., C. calanthoides Kraenzlin and the artificial hybrid C. ‘Kewensis’ are explained.