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Hydrophytes Stock Photos and Images
RMEBNHBR–purple loosestrife, spiked loosestrife (Lythrum salicaria), detail of an inflorescences, Germany
RMHA354X–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89D9–Indian lotus (Nelumbo nucifera), flower, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRDH0HN–. A textbook of botany for colleges and universities ... Botany. 574 ECOLOGY poplar, fig. 820). In many leaves there is no obvious relation between habitat and hair production, mesophytes frequently and hydrophytes rarely (as in Pistia and Salvinia) being conspicuously hairy (fig. 897). The influence of external factors upon the production and form of epidermal hairs. — Perhaps the most striking variations in hairiness within the same species are found in amphibious plants, such as Jussiaea repens and Polygonum amphibium. Aquatic individuals of the latter have smooth leaves (fig. 821), while l
RMEBP409–reed grass, common reed (Phragmites communis, Phragmites australis), reed in sunlight, Germany
RMHA3557–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89D4–Indian lotus (Nelumbo nucifera), flower, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRH8GPX–. Botany for high schools. Botany. 428 GENERAL MORPHOLOGY OF PLANTS 608. Hydrophytes.*—These are plants which grow in fresh water or in very damp situations. The leaves of aerial hydrophytes are very thin, have a thin cuticle, and lose water easily, so that if the air becomes quite dry they are in danger of drying up even though the roots may be supplied with an abundance of water. The aquatic plants which are entirely submerged have often thin leaves, or very finely divided or slender leaves, since these are less liable to be torn by currents of water. The stems are. Fig. 402. Pond lilies, Ha
RMHA355C–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89E2–Indian lotus (Nelumbo nucifera), flower, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRDH0F5–. A textbook of botany for colleges and universities ... Botany. S88 ECOLOGY resting stages are able to endure the high temperatures of hot springs or the low- temperature of liquid hydrogen, and are able to withstand the desiccation of the desert. Even algae, though characteristic hydrophytes, may occur, apparently un- protected, on dry rocks or in the snow and ice, the blue-green algae in particular being about as resistant as are the bacteria. Lichens absorb and transpire water quickly, enduring long droughts in a desiccated condition without injury; indeed, they may be regarded as among th
RMHA354G–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89E8–Indian lotus (Nelumbo nucifera), flower, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRDH0RC–. A textbook of botany for colleges and universities ... Botany. 532 ECOLOGY acting as a lens, converges the light upon the plastids; the emission of reflected rays causes this moss and the alga, Botrydium, to glisten in the sunlight. The leaves of water plants and of shade plants are deep green, which is due partly to the thin, transparent epidermis and partly to the peripheral position of the numerous deep-green chloroplasts. Xerophytes. â Xerophytes contrast sharply with hydrophytes, dis- playing prominent palisade tissue, often in many rows (as in the olean- der and in most cacti), while t
RMHA355G–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89D7–Indian lotus (Nelumbo nucifera), flower, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRDHKB8–. A textbook of botany for colleges and universities ... Botany. 678 ECOLOGY advance upstream, and even may migrate from one river or pond to another; wind and fish may be agents of dispersal upstream, and it is the current belief that the feet of wading birds are important agents in carrying plant fragments from one pond to another. Clearly the culmination of vegetative reproduction among seed plants is to be seen in fragmenting hydrophytes, where stem detachability facilitates dis- persal as much as does seed production. Winter buds. — In many aquatics there develop special winter buds or hi
RMHA354J–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89DD–Indian lotus (Nelumbo nucifera), flower, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRDA9T9–. A text-book of botany for secondary schools. Botany. HYDROPHYTES 331. Fig. 303.—Submerged and aerial leaves of a water buttercup.— After Strabburger. the mucky bottom; and even when they do not send leaves up to the surface of the water, they usually send up the flowers that they may open in the air. In parks and green- houses, the great water-lily of the Amazon (Victoria regia), the largest of all the water- lilies, is commonly seen (Fig. 302)-. Floating and submerged leaves are very different in form, and when both kinds occur on the same plant the contrast is striking (Fig. 303). 194. Ree
RMEYYR6J–Dwarf Bulrush, Miniature Cattail, Least Bulrush (Typha minima), flowering population, Germany
RMHA354K–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89CW–Indian lotus (Nelumbo nucifera), flowers, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRDW94K–. Introduction to botany. Botany. Fig. 171. Batis maritima. Halophyte from a tropical sea beach. After Dam- mar. Fig. 172. Cassiope tetragona, bearing small, leath- ery, in-rolled leaves; from Greenland. After Warming. 172), growing in the cold soil of Greenland. In each of these plants the reduction of the transpiring surface is very marked. 209. Character of Hydrophytes.—^The hydrophytes are abundantly supplied with water and do not need to provide special devices to guard against its loss. But because they are often in part, or wholly, submerged in water they are in danger of suffering from
RMHA354N–Schild-Wasserhahnenfuß, Schildwasserhahnenfuß, Schild-Wasserhahnenfuss, Schildwasserhahnenfuss, Ranunculus peltatus, Ranunculus aquatilis peltatus, Po
RMCR89DW–Indian lotus (Nelumbo nucifera), flower, Kota Kinabalu, Sabah, Malaysia, Borneo, Southeast Asia
RMRDH0RH–. A textbook of botany for colleges and universities ... Botany. Fig. 763. — A cross section of a submersed hydrophytic leaf, that of a pondweed {Potamogelon lucens), show- ing the few cell layers (here three) characteristic of a water leaf; note the abundance of chloroplasts (c) in the epidermis (e) and the absence of cutin- ized epidermal walls; highly magni- fied.. allel to the leaf surface. In submersed hydrophytes epidermal chloro- phyll usually is abundant (fig. 1018), often exceeding in amount that contained in the mesophyll, which may be loose and spongy by reason of the large air spac
RMRDW94E–. Introduction to botany. Botany. 324 Introduction to Botany. or carbon dioxide. Therefore we find them modified in such a way as to facihtate the entrance, circulation, and storage of gases; and to this end the surfaces of leaves and stems are increased, and in the parts which are not sub- merged stomata are abundantly provided. The yellow water lily, Neliimbo lutea, serves as a good example of hydrophytes which are partly submerged (Figs. 'â -'®. S^!;^.^ .^4^j^^^;h^j^^i i^^j-./^^i^s-^. 69 and 173). Its underground stems grow horizontally a few inches below the surface of the mud, in relativ
![. The botanical magazine = Shokubutsugaku zasshi. Plants; Botany. 42 THE BOTANICAL MA GAZINE. [voi. xxv. No. m. Associated with these, there are :?Limnantbemum nywphoides Link. var. japonica Miq., Hydrillaa siatica Mio., Utricularia vulgaris L., Trapella sinensis Oi.iy., and the same submerged hydrophytes as in the preceding zone. A remarkable fact in this zone is that the large patches (1—2m in diameter) of Zizania aquatic a are floating- freely, which country men call"Ukishima " (= floating islets). Fig. 4. Luxuriant growth of Typha angislifoHa among tlie dense grou'th of Ziz'ima a Stock Photo](https://c8.alamy.com/comp/RHA7DK/the-botanical-magazine-=-shokubutsugaku-zasshi-plants-botany-42-the-botanical-ma-gazine-voi-xxv-no-m-associated-with-these-there-are-limnantbemum-nywphoides-link-var-japonica-miq-hydrillaa-siatica-mio-utricularia-vulgaris-l-trapella-sinensis-oiiy-and-the-same-submerged-hydrophytes-as-in-the-preceding-zone-a-remarkable-fact-in-this-zone-is-that-the-large-patches-12m-in-diameter-of-zizania-aquatic-a-are-floating-freely-which-country-men-callquotukishima-quot-=-floating-islets-fig-4-luxuriant-growth-of-typha-angislifoha-among-tlie-dense-grouth-of-zizima-a-RHA7DK.jpg ". The botanical magazine = Shokubutsugaku zasshi. Plants; Botany. 42 THE BOTANICAL MA GAZINE. [voi. xxv. No. m. Associated with these, there are :?Limnantbemum nywphoides Link. var. japonica Miq., Hydrillaa siatica Mio., Utricularia vulgaris L., Trapella sinensis Oi.iy., and the same submerged hydrophytes as in the preceding zone. A remarkable fact in this zone is that the large patches (1—2m in diameter) of Zizania aquatic a are floating- freely, which country men call"Ukishima " (= floating islets). Fig. 4. Luxuriant growth of Typha angislifoHa among tlie dense grou'th of Ziz'ima a Stock Photo")
RMRHA7DK–. The botanical magazine = Shokubutsugaku zasshi. Plants; Botany. 42 THE BOTANICAL MA GAZINE. [voi. xxv. No. m. Associated with these, there are :?Limnantbemum nywphoides Link. var. japonica Miq., Hydrillaa siatica Mio., Utricularia vulgaris L., Trapella sinensis Oi.iy., and the same submerged hydrophytes as in the preceding zone. A remarkable fact in this zone is that the large patches (1—2m in diameter) of Zizania aquatic a are floating- freely, which country men call"Ukishima " (= floating islets). Fig. 4. Luxuriant growth of Typha angislifoHa among tlie dense grou'th of Ziz'ima a
RMF899EP–Water Fringe, Yellow Floating Heart, Gewöhnliche Seekanne, Europäische Seekanne, Nymphoides peltata, Schwimmblattpflanze
![. Botany all the year round; a practical text-book for schools. Botany. 242 ECOLOGY Halophytes, "salt plants," is a term used to designate a fourth class, based not directly upon the water factor, but upon the presence of a particular mineral in the water or the soil, which they can tolerate. They seem to bear a sort of double relation to hydrophytes on the one hand and to xerophytes on the other. 349. Hydrophyte Societies. — These embrace a number of forms, from those inhabiting swamps and wet moors to the submerged vegetation of lakes and rivers. An exami-. Please note that these i Stock Photo](https://c8.alamy.com/comp/RE294M/botany-all-the-year-round-a-practical-text-book-for-schools-botany-242-ecology-halophytes-quotsalt-plantsquot-is-a-term-used-to-designate-a-fourth-class-based-not-directly-upon-the-water-factor-but-upon-the-presence-of-a-particular-mineral-in-the-water-or-the-soil-which-they-can-tolerate-they-seem-to-bear-a-sort-of-double-relation-to-hydrophytes-on-the-one-hand-and-to-xerophytes-on-the-other-349-hydrophyte-societies-these-embrace-a-number-of-forms-from-those-inhabiting-swamps-and-wet-moors-to-the-submerged-vegetation-of-lakes-and-rivers-an-exami-please-note-that-these-i-RE294M.jpg ". Botany all the year round; a practical text-book for schools. Botany. 242 ECOLOGY Halophytes, "salt plants," is a term used to designate a fourth class, based not directly upon the water factor, but upon the presence of a particular mineral in the water or the soil, which they can tolerate. They seem to bear a sort of double relation to hydrophytes on the one hand and to xerophytes on the other. 349. Hydrophyte Societies. — These embrace a number of forms, from those inhabiting swamps and wet moors to the submerged vegetation of lakes and rivers. An exami-. Please note that these i Stock Photo")
RMRE294M–. Botany all the year round; a practical text-book for schools. Botany. 242 ECOLOGY Halophytes, "salt plants," is a term used to designate a fourth class, based not directly upon the water factor, but upon the presence of a particular mineral in the water or the soil, which they can tolerate. They seem to bear a sort of double relation to hydrophytes on the one hand and to xerophytes on the other. 349. Hydrophyte Societies. — These embrace a number of forms, from those inhabiting swamps and wet moors to the submerged vegetation of lakes and rivers. An exami-. Please note that these i
RMF899G6–Water Fringe, Yellow Floating Heart, Gewöhnliche Seekanne, Europäische Seekanne, Nymphoides peltata, Schwimmblattpflanze
RMC03H0N–African Jacana (Actophilornis africanus), foraging adult, on water lily pad, Kruger National Park, South Africa, Africa
RMF899F6–Water Fringe, Yellow Floating Heart, Gewöhnliche Seekanne, Europäische Seekanne, Nymphoides peltata, Schwimmblattpflanze
RMF897JG–Water Fringe, Yellow Floating Heart, Gewöhnliche Seekanne, Europäische Seekanne, Nymphoides peltata, Schwimmblattpflanze
Search Results for Hydrophytes Stock Photos and Images (4,714)
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