Three new combinations in Prunus L., i.e., P. ghahremanii (Maroofi, Attar & Vafadar) Falatoury, P. paradoxa (Dehshiri & Mozaff.) Falatoury, and P. yazdiana (Mozaff.) Falatoury, are proposed for Iranian species initially placed under Amygdalus L. or Cerasus Mill., and the situation of Prunus in the Flora of Iran is discussed.

A new species of Hippeastrum Herb. (Amaryllidaceae) from the department of Amazonas, Peru, is described and illustrated here. Hippeastrum peruvianum Meerow & Campos-Rocha features floral morphology unique among the other species of the genus occurring in the country. It has similarities with H. miniatum (Ruiz & Pav.) Herb. and H. reginae (L.) Herb. but is distinguished readily by its larger flowers, distinct coloration pattern, and trifid stigma. The new species is known only from the type collection by Paul C. Hutchison in 1958. It was determined as H. miniatum in error and has apparently been widely cultivated, especially in California, either under that name or erroneously considered a hybrid. We additionally observe that H. ugentii Ochoa, described from Peru and later transferred to Crinum L., is the naturalized South African species C. moorei Hook. f.

Chlorocardium esmeraldense van der Werff, a new species from the Pacific coast of Ecuador, is described and illustrated. The circumscription of Chlorocardium Rohwer, H. G. Richt. & van der Werff is widened. The genus now includes three species, one with tetramerous flowers and two with trimerous flowers.

This paper reviews Hippotis Ruiz & Pav. and Schradera Vahl, two Rubiaceae genera with centers of diversity in western South America. Both are inadequately known and in need of field study. Recent authors' circumscriptions of H. albiflora H. Karst. and H. mollis Standl. are narrowed here, and four new species of Hippotis are described: H. antioquiana C. M. Taylor from northwestern Colombia, H. ecuatoriana C. M. Taylor from central-southern Ecuador, H. elegantula C. M. Taylor & M. Calderón from the western Amazon basin in Ecuador, and H. vasqueziana C. M. Taylor from lowland northeastern Peru. Four new species of Schradera Vahl are also described here: S. cernua C. M. Taylor and S. francoae C. M. Taylor from western Colombia, S. condorica C. M. Taylor & D. A. Neill from southern Ecuador, and S. morindoides C. M. Taylor from southern Ecuador and northern Peru. Schradera condorica at least sometimes is a free-standing tree, a habit newly documented for this genus.

Palicourea Aubl. (Rubiaceae) comprises a large group of Neotropical species, many of which were previously classified in Psychotria L. subg. Heteropsychotria Steyerm. Ongoing study of those species here clarifies the identity of Palicourea pilosa (Ruiz & Pav.) Borhidi, Palicourea hazenii (Standl.) Borhidi, and several similar species, and classifies them all in Palicourea subg. Montanae C. M. Taylor sect. Montanae ser. 4 subser. f. Twenty-five species found from southern Central America through western South America are studied here. The circumscription of Palicourea pilosa is narrowed, four new nomenclatural combinations are made in Palicourea, and 10 new species and one new subspecies are described.

A new genus, Ailuroglossum Sutorý (Boraginaceae), endemic to Sichuan and Yunnan provinces of southern China, is described. It includes two species: A. triste (Diels) Sutorý, formerly recognized as Cynoglossum triste Diels, and the newly described A. breviglochidiatum Sutorý. The genus is distinguished from Cynoglossum L. by a combination of characters, including a rhizome rather than a taproot, an almost flat gynobase, narrowly conical style, and discoid stigma, nutlets with perfect separation, without ventral attachment, and hourglass-shaped tricolporate pollen grains. The new species, A. breviglochidiatum, is distinguished by its more slender rhizomes with longer internodes, differently shaped leaves, and smaller nutlets with a denser indument of shorter glochids.

A new species of Cinnamomum Schaeff. from the Pacific coast of Ecuador is described and discussed. Cinnamomum latifolium van der Werff is distinctive for its broad triplinerved leaves with canaliculate petioles, densely pubescent young twigs, and 2-locular inner stamens. In addition, six species recently described in Aiouea Aubl. should, in this author's opinion, be placed within Cinnamomum. The new combinations C. ampullaceum (Lorea-Hern.) van der Werff, C. hirsutum (Lorea-Hern.) van der Werff, C. paratriplinerve (Lorea-Hern.) van der Werff, C. pseudoglaziovii (Lorea-Hern.) van der Werff, C. rubrinervium (Lorea-Hern.) van der Werff, and C. uninervium (Lorea-Hern.) van der Werff are accordingly published. The author citation of the recently transferred C. baitelloanum van der Werff & P. L. R. Moraes to Aiouea is rejected.

Hieracium reitzianum Cabrera ex Urtubey, a new species of Asteraceae from southeastern Brazil, is described and illustrated. This species is placed within Hieracium L. sect. Hypochaeridiformia (Arv.-Touv. ex Peter) Zahn (Hieracium subg. Chionoracium Sch. Bip.) by the presence of ciliate corolla lobes. It is most readily distinguished from other species of the section by having broadly obovate to suborbicular leaves with rounded to obtuse apices.