A correction to the Lepanthes guatemalensis group (Orchidaceae: Pleurothallidinae) in Costa Rica, with a new species

The true Lepanthes edwardsii is first recorded for the flora of Costa Rica, described and illustrated on the basis of a Costa Rican voucher. The taxon previously recorded under that name is described as new to science as Lepanthes bogariniana; it is closely related to L. edwardsii, L. durikäensis, and L. viquezii, but can be distinguished by the narrowly elliptic lateral sepals, the tails straight to curved inward, the lobes of the petals with rounded apices, the blades of the lip straight and not bent towards the lateral sepals, and the yellowish-white column.

Additions to the vascular flora of Costa Rica: four new records from the Sabanas Miravalles

The Costa Rican vascular flora is well known and studied, but there are gaps of floristic knowledge in some areas and ecosystems that are poorly explored. The Costa Rican savannas, cover a small geographic extent and are almost unexplored floristically. The Sabanas Miravalles are located in the western flank of the Volcán Miravalles in the Cordillera de Guanacaste. As a result of a broad floristic inventory of this site, four species have been documented as new records for the Costa Rican vascular flora: Eriocaulon fuliginosum, Polygala pseudocoelosioides, Trimezia martinicensis, and Utricularia subulata.

Catálogo preliminar de las Orchidaceae de la Zona Protectora Cerros de la Carpintera, Costa Rica

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>l gran botánico norteamericano Paul C. Standley visitó nuestro país en dos ocasiones, en los veranos de 1923-24 y 1925-26, durante las cuales realizó el trabajo preliminar que conduciría, en 1937, a la publicación de su </span><span>Flora of Costa Rica</span><span>, primera flora de nuestro país en el siglo XX, si exceptuamos el trabajo inconcluso de Pittier en su </span><span>Primitiae Florae Costaricensis</span><span>. </span></p></div></div></div>

Additions and Corrections to the Foliicolous Lichen Flora of Costa Rica. The Family Gyalectaceae

This paper provides a revision of the foliicolous representatives of the Gyalectaceae in Costa Rica. Five species of Coenogonium and 13 of Dimerella are distinguished. Coenogonium interplexum, C. interpositum, C. leprieurii, C. linkii and Dimerella vezdana are ubiquitous as to the choice of their substratum, whereas C. moniliforme and Dimerella lutea are facultatively foliicolous. The remainder are typically foliicolous taxa but may occasionally be found on bark. The following species are for the first time reported as foliicolous from Costa Rica: Coenogonium interplexum, C. interpositum, C. leprieurii, C. moniliforme, Dimerella fallaciosa, D lisowskii, and D. aff. pilifera. Three new species are described: Dimerella isidiifera sp. nov. with disciform isidia, D. subzonatasp. nov. with small, bright yellow, dentate apothecia and a whitish prothallus, and D. siquirrensis sp. nov. with large, orange apothecia and a thin whitish prothallus. A key is presented for neotropical foliicolous Gyalectaceae, and notes on the distribution and ecology of the species are given.

Additions and corrections to the knowledge of the foliicolous lichen flora of Costa Rica.The genus Fellhanera, with notes on Bacidia pauciseptata

This further contribution to the knowledge of the foliicolous lichen flora of Costa Rica provides a detailed account on the genus Fellhanera. In total, 25 species and five undescribed taxa are treated. Ten species are described as new: Fellhanera angustispora sp.n., F. dictyospora sp.n., F. dispersa sp.n., F. emarginata sp.n., F. pilomarginata sp.n., F. longispora sp.n., F. muhlei sp.n., F. montana sp.n., F. verrucifera sp.n., and F. viridis sp.n. New combinations are F. pauciseptata (R. Sant.) R. Lücking comb.n. [Bas.: Bacidia pauciseptata R. Sant.] and F. rubida (Müll. Arg.) R. Lücking comb.n. [Bas.: Patellaria rubida Müll. Arg.]. F. dominicana (Vain.) Vezda is placed into synonymy with F. fuscatula (Müll. Arg.) Vezda, whose type has 7-septate ascospores, and the name F. subfuscatula R. Lücking sp.n. is introduced for the taxon with 5-septate ascospores formerly known as F. fuscatula. F. misionensis Ferraro & R. Lücking ined. and F. sublecanorina (Nyl.) Vezda are reported for the first time from Costa Rica. The formerly invalidly published names F. farinosa nom. nud. and F. pilosa nom. nud. are considered to be synonyms of F. fuscatula (Müll. Arg.) Vezda and F. rhapidophylli (Rehm) Vezda, respectively. Specimens identified as F. tuckeri nom. nud. belong to F. rhapidophylli as well. F. buxi is excluded from the foliicolous lichen flora of Costa Rica. A keys is provided to the complex group of species of Fellhanera with brownish apothecia and 3-septate ascospores. Infrageneric relationships within Fellhanera are briefly discussed, and notes on the ecology of the species are provided.