Systematics and Evolution of Cordylanthus (Scrophulariaceae-Pedicularieae) (Including the Taxonomy of Subgenus Cordylanthus)

Chuang, T. I.; Heckard, Lawrence R.

doi:10.2307/25027622

Cited by 8 publications

(33 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2 . A synoptical overview to species of the phylogenetic classification proposed here and a comparison to the most recent taxonomic treatment of Castillejinae ( Chuang and Heckard 1986, 1992 and the major lineages comprising the subtribe is given in Appendix 1.…”

Section: Methodsmentioning

confidence: 99%

“…The height of the clade with the dashed boundary corresponds to approximately 35% of the species found in that clade. The classification of Castillejinae sensu Chuang and Heckard (1986, 1992 is indicated in the left column. The phylogenetic classification proposed in this paper is indicated in the right column.…”

Section: Methodsmentioning

confidence: 99%

“…Nearly all previous workers on the group have followed this general circumscription of the genus (e.g. Bentham 1836Bentham , 1846Gray 1867Gray , 1883Gray , 1886Wettstein 1891 ;Ferris 1918 ), and in the most recent treatment of the genus, Chuang and Heckard (1986) recognized the three subgenera, Hemistegia (4 species), Dicranostegia (1 species), and Cordylanthus (13 species comprising 4 sections). However, as it is traditionally circumscribed, Cordylanthus was not monophyletic in any of the molecular analyses, but rather, was biphyletic ( Tank and Olmstead 2008 ); the two main subgenera, Cordylanthus and Hemistegia, were each monophyletic, and the monotypic subg.…”

Section: Chloropyronmentioning

confidence: 97%

“…Because of their similarity, the floral bract was commonly misinterpreted as part of the calyx by previous workers (e.g. Gray 1867Gray , 1886Wettstein 1891 ;Ferris 1918 ), where species belonging to the Cordylanthus clade were described as having a "diphyllous" calyx and the members of the / Pseudocordylanthus clade were described as having a "monophyllous" calyx ( Chuang and Heckard 1986 ). Part of this confusion was due to the presence of the outer bract, which usually subtends the basic spike inflorescence, but as a result of the reduction of the basic inflorescence to the single-flowered florescences, each flower has multiple bracts associated with it.…”

Section: Chloropyronmentioning

confidence: 99%

See 3 more Smart Citations

Phylogenetic Classification of Subtribe Castillejinae (Orobanchaceae)

Tank¹,

Egger²,

Olmstead³

2009

Systematic Botany

View full text Add to dashboard Cite

Recent molecular systematic research has indicated the need for a revised circumscription of generic boundaries in subtribe Castillejinae (tribe Pedicularideae, Orobanchaceae). Based on a well-resolved and well-supported phylogenetic hypothesis, we present a formal reclassification of the major lineages comprising the Castillejinae. Prior to this treatment, subtribe Castillejinae included Castilleja (ca. 190 spp.), Cordylanthus (18 spp.), Orthocarpus (9 spp.), Triphysaria (5 spp.), and the monotypic genera Clevelandia and Ophiocephalus. In the classification presented here, Orthocarpus and Triphysaria retain their current circumscriptions, Castilleja is expanded to include Clevelandia and Ophiocephalus, and Cordylanthus is split into three genera; a key to the genera as they are recognized here is provided. Two new combinations, Castilleja beldingii and Castilleja ophiocephala, are proposed within the expanded Castilleja. The concept of Cordylanthus is restricted to the 13 species formerly recognized as subg. Cordylanthus, while subg. Dicranostegia and subg. Hemistegia are elevated to genus level (Dicranostegia and Chloropyron, respectively). We resurrect the generic name Chloropyron for the halophytes previously recognized as subg. Hemistegia. Five new combinations are proposed for Chloropyron (Chloropyron maritimum subsp. canescens, Chloropyron maritimum subsp. palustre, Chloropyron molle subsp. hispidum, Chloropyron palmatum, and Chloropyron tecopense). In addition to the formal classification, we provide phylogenetic clade definitions for Castillejinae, each of the genera, and two additional clades that are not assigned formal ranks. Morphological characteristics used to recognize traditional groups are evaluated, and synapomorphies are discussed. Finally, the current infrageneric classifications for Castilleja and Cordylanthus are evaluated in light of the recent molecular phylogenetic analyses.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Chloropyronmentioning

confidence: 97%

Section: Chloropyronmentioning

confidence: 99%

See 2 more Smart Citations

Phylogenetic Classification of Subtribe Castillejinae (Orobanchaceae)

Tank¹,

Egger²,

Olmstead³

2009

Systematic Botany

View full text Add to dashboard Cite

show abstract

“…A derived seed coat character-irregularly striate-was found in Cordylanthus rigidus. The irregularly striate seed coat is an effective diagnostic feature for genus Cordylanthus, because it is not found in any other group of Castillejeae (Chuang and Heckard 1976;1986).…”

Section: Discussionmentioning

confidence: 99%

Fruit and seed morphology in some representative genera of tribe Rhinantheae sensu lato (Orobanchaceae) and related taxa

et al. 2014

View full text Add to dashboard Cite

We investigated fruit and seed morphology in 48 taxa of 22 genera in the tribe Rhinantheae s.l. and related genera of Orobanchaceae. Fruit and seed morphology are heterogeneous across the studied taxa. The most useful features for this study are the indumentum of the capsule, seed number per capsule, seed coat ornamentation, and secondary structure of the seed coat. On the basis of seed coat features, five major types are recognized, viz. reticulate, cristate-winged, sulcate, psilate and irregularly striate. In addition, phenetic analysis of 19 characters produced an unweighted pair-group method using arithmetic averages tree and displayed highly heterogeneity at infra-and inter-genera. The classification of Rhinantheae s.l. is discussed and keys to the genera considered in this work, based exclusively on fruit or seed characters, are provided.

show abstract

Patterns of Floral Development in Agalinis and Allies (Scrophulariaceae). Ii. Floral Development of Agalinis Densiflora

Canne-Hilliker

1987

American J of Botany

View full text Add to dashboard Cite

Initiation of floral primordia begins in Agalinis densiflora with production of two lateral adaxial calyx lobe primordia followed by a midadaxial primordium, and then primordia of two abaxial calyx lobes. Initiation of three abaxial corolla lobe primordia is succeeded by that of two stamen pairs and then by primordia of two adaxial corolla lobes. The primordium of the abaxial carpel appears before the adaxial one. Except for the calyx, initiation of primordia proceeds unidirectionally from the abaxial to the adaxial side of the floral apex. Zygomorphy in the calyx, corolla, and androecium is evident during initiation of primordia and is accentuated during organogenesis. The calyx undergoes comparatively rapid organogenesis, but the inner three floral series undergo a protracted period of organogenesis. The perianth series reach maturation prior to meiosis in the anthers. Maturation of the androecium and gynoecium are postmeiotic events.

show abstract

Systematics and Evolution of Cordylanthus (Scrophulariaceae-Pedicularieae) (Including the Taxonomy of Subgenus Cordylanthus)

Cited by 8 publications

References 0 publications

Phylogenetic Classification of Subtribe Castillejinae (Orobanchaceae)

Phylogenetic Classification of Subtribe Castillejinae (Orobanchaceae)

Fruit and seed morphology in some representative genera of tribe Rhinantheae sensu lato (Orobanchaceae) and related taxa

Patterns of Floral Development in Agalinis and Allies (Scrophulariaceae). Ii. Floral Development of Agalinis Densiflora

Contact Info

Product

Resources

About