CHROMOSOME NUMBERS OF THE FAMILY CRUCIFERAE. III

1966 ◽  
Vol 44 (3) ◽  
pp. 309-319 ◽  
Author(s):  
Gerald A. Mulligan
Keyword(s):  
North American ◽  
Chromosome Numbers ◽  
North American Species ◽  
Basic Chromosome ◽  
The Family

Chromosome numbers are given for a number of North American species in the genera Draba, Erophila, and Erysimum. New basic chromosome numbers are suggested for North American species of Draba and Erysimum and it is suggested that Erysimum inconspicuum reproduces by agamospermy.

CHROMOSOME NUMBERS OF THE FAMILY CRUCIFERAE. II

1965 ◽  
Vol 43 (6) ◽  
pp. 657-668 ◽  
Author(s):  
Gerald A. Mulligan
Keyword(s):  
North American ◽  
Chromosome Numbers ◽  
North American Species ◽  
Base Number ◽  
The Family ◽  
First Time

Chromosome numbers and taxonomic discussions are given for North American material of species in the genera Braya and Cardamine. The following chromosome numbers are reported for the first time: Braya humilis s.l., n = 14 and 2n = 28; Cardamine angulata, n = 20, and 2n = 40; C. cordifolia, 2n = 24; C. microphylla, 2n = 32; C. occidentalis, n = 32 and 2n = 64; C. oligosperma, 2n = 16; C. pensylvanica, 2n = 64; C. umbellata, n = 24 and 2n = 48. It is concluded that the base number of Braya is x = 7 not x = 8 and that North American species of Cardamine have the base numbers x = 6, 8, and 10.

NORTH AMERICAN WATER MITES OF THE FAMILY MOMONIIDAE VIETS (ACARI: ARRENUROIDEA). IV. REVISION OF SPECIES OF STYGOMOMONIA (SENSU STRICTO) SZALAY, 1943

1991 ◽  
Vol 123 (3) ◽  
pp. 501-558 ◽  
Author(s):  
Ian M. Smith
Keyword(s):  
New Species ◽  
North American ◽  
Sensu Stricto ◽  
North American Species ◽  
Water Mites ◽  
Dispersal Patterns ◽  
The Family ◽  
Three New Species ◽  
New Diagnosis ◽  
First Time

AbstractMorphological, life history, and distributional data are presented for North American species of the subgenus Stygomomonia (sensu stricto) Szalay, 1943. Adults of the seven previously recognized species are redescribed, and deutonymphs of five of these species are described for the first time. Two species, S. (s.s.) neomexicana Cook and S. (s.s.) occidentalis Cook are substantially revised on the basis of an examination of the types and extensive series of newly collected specimens. Three new species are described, S. (s.s.) californiensis on the basis of deutonymphs and adults, and S. (s.s.) imamurai and S. (s.s.) cooki on the basis of adults. A new diagnosis of the subgenus is proposed and discussed, the relationships of the various species are discussed, and a key to deutonymphs and adults of North American species is presented. New distributional data are presented for all species, and dispersal patterns from Pleistocene refugia are discussed.

CYTOTAXONOMY, PHYLOGENY, AND CANADIAN DISTRIBUTION OF CIRSIUM UNDULATUM AND CIRSIUM FLODMANII

1961 ◽  
Vol 39 (1) ◽  
pp. 21-33 ◽  
Author(s):  
C. Frankton ◽  
R. J. Moore
Keyword(s):  
North American ◽  
Chromosome Numbers ◽  
World Wide ◽  
North American Species ◽  
Base Number ◽  
Total Length ◽  
The World ◽  
Cirsium Undulatum

The morphology and specific differences of Cirsium undulatum (Nutt.) Spreng. and of C. flodmanii (Rydb.) Arthur are described and their Canadian distributions are reported in detail. The chromosome numbers are C. undulatum f. undulatum and f. album Farwell, 2n = 26; C. flodmanii f. flodmanii and f. albiflorum D. Löve, 2n = 22. The origin of four North American species of Cirsium that do not follow the world-wide base number 17 is discussed; it is postulated that reduction in number has occurred by translocations. The chromosomes of species with reduced numbers are larger than those of the unreduced species but the total length of the chromosomes of both groups is approximately the same.

THE NORTH AMERICAN SPECIES OF MASSALONGIA AND GENERIC RELATIONSHIPS

1963 ◽  
Vol 41 (9) ◽  
pp. 1331-1346 ◽  
Author(s):  
Aino Henssen
Keyword(s):  
North American ◽  
Systematic Position ◽  
North American Species ◽  
New Combination ◽  
General Survey ◽  
The North ◽  
The Family ◽  
Generic Relationships

The systematic position of the genus Massalongia and the closely related genera Koerberia, Vestergrenopsis, and Placynthium in the family Peltigeraceae including lichens with hemiangiocarpic apothecia is discussed. The ontogeny of a hemiangiocarpic apothecium is described briefly. A key for the determination of the genera is provided.A general survey is given for the morphology and anatomy of the genus Massalongia. The two species, M. carnosa and M. microphylliza, are described in detail. The new combination M. microphylliza is made.

A New Gunnel, Pholis clemensi, from the Coast of Western North America

1964 ◽  
Vol 21 (5) ◽  
pp. 933-939 ◽  
Author(s):  
Richard H. Rosenblatt
Keyword(s):  
British Columbia ◽  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Western North America ◽  
The North ◽  
The Family ◽  
Juan De Fuca ◽  
A New Species

A new species, Pholis clemensi, referred to the family Pholidae, is named and described from 12 specimens taken in southern British Columbia waters and the Strait of Juan de Fuca. Pholis clemensi is compared with other members of the genus, and a key is given to the North American species.

scholarly journals Synopsis of the family Tellinidae and of the North American species

1900 ◽  
Vol 23 (1210) ◽  
pp. 285-326 ◽  
Author(s):  
William Healey Dall
Keyword(s):  
North American ◽  
North American Species ◽  
The North ◽  
The Family

Scanning electron microscopy of basidiospores of species of Strobilomycetaceae

1971 ◽  
Vol 49 (8) ◽  
pp. 1259-1261 ◽  
Author(s):  
Larry F. Grand ◽  
Royall T. Moore
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
North American ◽  
North American Species ◽  
Surface Features ◽  
The Family ◽  
Similarities And Differences ◽  
Scanning Electron

Basidiospores of 13 North American species of Strobilomycetaceae were examined by scanning electron microscopy. Similarities and differences of surface features among species are discussed in relation to their possible role in the taxonomy of the family.

UNDESCRIBED NORTH AMERICAN SPECIES OF PSELAPHIDAE (COLEOPTERA), INCLUDING A SYNOPSIS OF THE GENUS RHEXIDIUS CASEY

1932 ◽  
Vol 64 (2) ◽  
pp. 29-35
Author(s):  
Frank C. Fletcher
Keyword(s):  
North American ◽  
North American Species ◽  
The North ◽  
The Family

The following species, with one exception. are a part of those loaned me by various institutions during the course of my work on a revision of the North American species of the family.The location of the type is, in every case, indicated immediately after the description.

scholarly journals First North American species of the European genus Archaemegaptilus from the Upper Carboniferous Pottsville Formation of northern Alabama (Palaeodictyoptera: Archaemegaptilidae)

2018 ◽  
pp. 1-7
Author(s):  
Roy J. Beckemeyer ◽  
Michael S. Engel
Keyword(s):  
New Species ◽  
North American ◽  
Hind Wing ◽  
North American Species ◽  
Valid Species ◽  
Upper Carboniferous ◽  
The Third ◽  
The Family

A new palaeodictyopteran (Palaeodictyopterida: Palaeodictyoptera) taxon is described based on a nearly complete hind wing found in the Pottsville Formation (Upper Carboniferous) of Bibb County, Alabama.  Archaemegaptilus blakelyi Beckemeyer & Engel, new species, is the sixth insect genus and species described from the Pottsville of Alabama and the second palaeodictyopteran from those deposits.  It is the third valid species assigned to the family Archaemegaptilidae.  Previously known species are A. kiefferi Meunier, from the Commentry of France and A. schloesseri Brauckmann et al., from the Hagen-Vorhalle of Germany.

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