3 edition of On the similarity between the genus Draparnaldia and the confervoid filaments of mosses found in the catalog.
On the similarity between the genus Draparnaldia and the confervoid filaments of mosses
|Statement||by J. Braxton Hicks ; read March 4, 1869.|
|Series||Landmarks of science II|
|LC Classifications||Q111 .H35, QK535 .H35|
|The Physical Object|
|Pagination||p. 153-154,  leaf of plates|
|Number of Pages||154|
The simplest cyanobacteria grow as single cells, which may be enclosed by a sheath or gelatinous envelope or may be clustered into colonies. Cell sizes range from 50 μm in length (e.g., Cyanothece, specialized cells in a cluster).Cells vary in form: spheres, rods, oval, fusiform, and irregular. The largest of our mosses are contained in the next genus, viz. Polyt´richum, some of them having the stems from 2 to 4 inches, or even more, in height; they are common on heaths and in woods. Polyt´richum pilif´erum (Pl. III. fig. 22) is very common on open dry heaths. This moss has simple stems, with the leaves crowded on the lower part of.
VEGETABLE KINGDOM. 2 There is one peculiar factor which enters into the problem of the classification of plants and materially adds to its is the polymorphism of the individual: that is, the life-history is usually complex, the individual assuming different forms in various stages of its life-history. In a similar manner the spirally-marked tubes that are mingled with the seeds of the Hepatic Mosses are converted into elastic spiral threads (Fig. 85). So, also, the delicate cells or hairs that invest the coat of some seeds, which contain a spirally-coiled thread, give way when moistened, or are torn asunder by the force with Which the thread.
An investigation of selected taxa of Staurastrum and Staurodesmus (Desmidiaceae, Desmidiales, Chlorophyta) was undertaken to help clarify their taxonomy. The study was conducted on samples collected in the lower Fraser Valley (British Columbia). Sampling was done over a 2 1/2 year period in four main lakes (Jacobs, Munday, Lost and Como Lakes) with physico-chemical analyses (pH, . Stems and leaves of mosses were wonderfully distinct in structure, so much so that I could draw every cell. I even readily detected confervoid filaments, with cells arranged in linear series, resembling species now found in our waters. Numerous black bodies, probably spores of the mosses, were found in abundance.
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Get this from a library. On the similarity between the genus Draparnaldia and the confervoid filaments of mosses. [John Braxton Hicks]. Among streptophytes, the most striking similarities to Draparnaldia are seen in Chara, a streptophyte alga with rhizoids (compare Fig.
4 in this review and Fig. 1 in Braun and Limbach, ). In both species, the rhizoids that grow upright originate from the main by: 1. On the similarity between the genus Draparnaldia and the confervoid filaments of mosses.
Trans Linn Soc Lond. ;–4. Article Google Scholar Cove DJ, Perroud PF, Charron AJ, McDaniel SF, Khandelwal A, Quatrano RS. Isolation and Cited by: 1. It leads to the filament splitting into two new filaments with a fully developed UP and PS.
On the similarity between the genus D raparnaldia and the. confervoid ﬁlaments of mosses. Trans. Draparnaldia Bory de St.-Vincent (Figs.
3C,D and 4C,D) Draparnaldia consists of erect uniseriate filaments attached by rhizoidal branches and enclosed within a soft mucilaginous envelope. Main axes bear oppositely, alternately, or whorled lateral tufts of smaller celled and much divided secondary branches, with blunt apical cells or terminating Cited by: 9.
The Closteria conjugate after a somewhat similar manner, and it is not unfrequent to find a pair in this condition, but in their case the sporangium is quite smooth on its surface. Another very remarkable family of confervoid algæ is that which is known under the name of.
This text presents the subject using a systems approach and is therefore a departure from the more commonly employed phyletic approach.
Topics covered include classification, cellular and sub-cellular organization, morphology and growth, reproduction and life cycles, evolution, phylogeny, physiology, ecology and the relationship between algae and man. Freshwater Algae of North America: Ecology and Classification, Second Edition is an authoritative and practical treatise on the classification, biodiversity, and ecology of all known genera of freshwater algae from North America.
The book provides essential taxonomic and ecological information about one of the most diverse and ubiquitous groups of organisms on earth. This banner text can have markup.
web; books; video; audio; software; images; Toggle navigation. Part of the single most likely tree (-In=) showing phylogenetic position of Metzgeriopsis, Lejeuneaceae, within the Tuyamaella-Cololejeunea clade (taken from Gradstein et al., ).
An illustration of an open book. Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk.
Software. An illustration of two photographs. Full text of "The structure and development of mosses and ferns (Archegoniatae)".
close relationship between Mesostigma (formerly in the Prasinophyceae) and the charophyte algae, although sequence data of the Mesostigma mitochondrial genome analysis places the genus as sister.
Full text of "A popular history of British mosses: comprising a general account of their structure, fructification, arrangement, and general distribution" See other formats. Newly discovered taxa with the Stigeocloniumlike morphology (filaments are uniseriate and form variously developed prostrate and erect systems; erect filaments are alternately, oppositely, or.
This coloring is ^ue to _ajg^e_similar to those found on the summit of the mound, but the filaments are buried in the travertine, their tips alone projecting, re- minding one of the growing points of peat mosses whose stems can WEED.] SOLUBILITY OF CARBONATE OF LIME.
be. Cooke says of this genus that it is scarcely so well characterized as many with which it is associated, and that some of the species are evidently so closely allied to some of the species of the genus Geoglossum that it is difficult to draw the line of demarcation between them, particularly so with the species Mitrula pistillaris B.
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Free ebooks since In book: Freshwater Algae of North America - Ecology and Classification (pp) similar in the field (see also Holmes and Whitton, plates of loosely arranged filaments. The genus. genus lake valve genera algal diatoms north america sheath filaments reproduction chloroplast taxa diatom colonies habitats spherical aquatic cyanobacteria ecology filamentous You can write a book review and share your experiences.
Other. P insert Genus Poecilichfhi/s, Ag. between numbers 1 and 2. P second line, for 2 read 2-;^. Wherever, in this paper, two fig- ures are separated by a hyphen, they should be written in the form of a com- mon fraction.
Current classification of freshwater members of the Phaeophyceae is therefore still largely based on morphological and reproductive structures: growth habit, branching pattern, plastid shape and number, and type of sporangia (Wehr,Eloranta et al., ).However, efforts have been made to reconcile morphological and cytological data with molecular information (McCauley and Wehr, ).
Taxonomic classification: Algae belong to at least 10 different taxonomic divisions (a division in plant taxonomy is equivalent to a phylum in zoological classification).Classification is based on four major considerations: (1) pigmentation (kinds and quantities; see Chapter 12), (2) internal storage products (chemistry and structure), (3) cell wall (chemistry and structure), and (4.The chlorophyte Cladophora (Chlorophyta, Ulvophyceae; more than species) is widely regarded as the most important harmful filamentous alga of inland waters, and the most abundant alga in alkaline streams throughout the world (Table 2, Figure 9).It also thrives in many freshwater and brackish lakes, and among the most famous of its habitats are the Laurentian Great Lakes.