Change of address
3 months ago in Variety of Life
A plant pundit comments on plants, the foibles and fun of academic life, and other things of interest.
 True foxgloves generally refer to the genus Digitalis. False foxgloves refer to a number of plants in what was formerly the snapdragon family, now fragmented and variously assigned based upon new phylogenetic findings, but all have large diameter tubular corollas, the sort of thing a fox might use as gloves. Today's fabulous flower is Aureolaria grandiflora, native to dry upland forest glades and river bluffs here in Lincolnland. The big yellow flowers are pretty showy, and the plant is pretty handsome, but it's not been introduced into horticulture because of one interesting fact: it's a root parasite that specializes on oak trees. It's also green, so we call it a hemiparasite, and that's one of the attractions for botanists. Why be green if you're a parasite, and conversely, why be a parasite if you're green? All such former members of the snapdragon family are presently placed in the Broom-rape family (Orobanchaceae).  These are generally pollinated by bumblebees that crawl inside to tube to reach the nectar below.  The top of this flower is to the upper right and the anthers and stigma are positioned in the "top" of the tube.
True foxgloves generally refer to the genus Digitalis. False foxgloves refer to a number of plants in what was formerly the snapdragon family, now fragmented and variously assigned based upon new phylogenetic findings, but all have large diameter tubular corollas, the sort of thing a fox might use as gloves. Today's fabulous flower is Aureolaria grandiflora, native to dry upland forest glades and river bluffs here in Lincolnland. The big yellow flowers are pretty showy, and the plant is pretty handsome, but it's not been introduced into horticulture because of one interesting fact: it's a root parasite that specializes on oak trees. It's also green, so we call it a hemiparasite, and that's one of the attractions for botanists. Why be green if you're a parasite, and conversely, why be a parasite if you're green? All such former members of the snapdragon family are presently placed in the Broom-rape family (Orobanchaceae).  These are generally pollinated by bumblebees that crawl inside to tube to reach the nectar below.  The top of this flower is to the upper right and the anthers and stigma are positioned in the "top" of the tube.
 No regular fungus feature is planned, but this was just too fine to not share. Found this very attractive fungus while exploring a prairie glade high on a river bluff. The common name is jack-0-lantern because it is a big pumpkin orange mushroom (Omphalotus illudens) and because at night the gills glow with a green luminescence; really spooky the first time you see it. Be careful mushroomers because people mistake this quite poisonous mushroom for Cantharellus cibarius, the golden chantarelle, which is choice eating. This is a good test for your recognition abilities.
No regular fungus feature is planned, but this was just too fine to not share. Found this very attractive fungus while exploring a prairie glade high on a river bluff. The common name is jack-0-lantern because it is a big pumpkin orange mushroom (Omphalotus illudens) and because at night the gills glow with a green luminescence; really spooky the first time you see it. Be careful mushroomers because people mistake this quite poisonous mushroom for Cantharellus cibarius, the golden chantarelle, which is choice eating. This is a good test for your recognition abilities.
 The oldest organisms on Earth are clonal organisms. Plants seem to have the capacity for immortality because they have perpetually juvenile tissues (meristems) capable of continued growth, and further, certain plant cells can dedifferentiate, return to a juvenile state, for wound repair and growth. This capacity is widely used in the vegetative reproduction of economically important plants. But can a clone live forever? Probably not, but they can be very old. The Pando clone of quaking aspen in Utah is estimated to be at least 80,000 years old, and some estimates place its age as 10 times older, which would make this clone as old as our whole species! Not only is Pando impressively old, it’s big covering over 40 hectares and at over 6000 tons is the largest organism alive. Now of course one problem with being an immobile species is that the longer you live the more likely you’ll encounter some environmental disaster, a fire, a flood, a volcanic eruption, a storm, a chain saw. But clones have a sex problem. Since they are all one genetic individual although looking like a whole forest, they cannot produce seed except by exchanging pollen with another individual, and when one individual occupies the whole area that becomes less likely. Even worse recent research suggests that as the clone gets older, it loses sexual vitality because of an accumulation of mutations. These show up in pollen because pollen only has one copy of each gene so if a harmful mutation occurs it may affect the viability of the pollen, a harm that does not affect the tree because in its tissues chromosomes and genes occur in pairs. By the relatively young age of 20,000 fertility can be diminished by more than 3/4s. So the clone may live a long time, but as it ages, its ability to sire offspring and start a new individual drops, but who knows Pando may already have lots of offspring.
The oldest organisms on Earth are clonal organisms. Plants seem to have the capacity for immortality because they have perpetually juvenile tissues (meristems) capable of continued growth, and further, certain plant cells can dedifferentiate, return to a juvenile state, for wound repair and growth. This capacity is widely used in the vegetative reproduction of economically important plants. But can a clone live forever? Probably not, but they can be very old. The Pando clone of quaking aspen in Utah is estimated to be at least 80,000 years old, and some estimates place its age as 10 times older, which would make this clone as old as our whole species! Not only is Pando impressively old, it’s big covering over 40 hectares and at over 6000 tons is the largest organism alive. Now of course one problem with being an immobile species is that the longer you live the more likely you’ll encounter some environmental disaster, a fire, a flood, a volcanic eruption, a storm, a chain saw. But clones have a sex problem. Since they are all one genetic individual although looking like a whole forest, they cannot produce seed except by exchanging pollen with another individual, and when one individual occupies the whole area that becomes less likely. Even worse recent research suggests that as the clone gets older, it loses sexual vitality because of an accumulation of mutations. These show up in pollen because pollen only has one copy of each gene so if a harmful mutation occurs it may affect the viability of the pollen, a harm that does not affect the tree because in its tissues chromosomes and genes occur in pairs. By the relatively young age of 20,000 fertility can be diminished by more than 3/4s. So the clone may live a long time, but as it ages, its ability to sire offspring and start a new individual drops, but who knows Pando may already have lots of offspring. 
 Here in the great midwest, August always means the same thing to gardeners, way too many zucchini. Neighbors, even vegetarians, even starving graduate students, will run and hide if they see you coming with a basket, and they should if you let them grow to more and 7-8" in length. The trouble is that when you're away for a few hours, and the squash go untended, zucchini can grow to the size of torpedoes. After making the obligatory zucchini bread, 6 loaves, out of just one torpedo, best to just admit the error and toss the rest. Even when picked at an optimal size, zucchini have a way of overwhelming you, so for decades now, any zucchini recipe that made something new was given a try, and most have been, well, less than exciting. And that's how it is with recipes, and cookbooks, and the Phactors know because when it comes to exotic cookbooks, containing all those culinary promises of gastronomic delight, we have no will power, and most of those recipes go untried, but every now and then you get a truly remarkable cookbook that yields 4 or 5 really outstanding recipes that get added to your cooking lexicon. My point being that many get tried, and few measure up, and when offering up a recipe to my readers, whose response to my initial recipe offering was rather disappointing, a result that can perhaps be attributed to people being creatures of habit and not willing to readily change their dietary staples, it has gone through a filter and passed the test; something that's really good, really easy, and in this case uses up those excess zucchini. These zucchini pickles don't take long to make, and piled on top of a grilled sausage or hotdog, they are simply outstanding. One small change: add 1 tsp of pickling spices to the vinegar mix for a bit more of a complex flavor. In a recent batch of these pickles, two long, thin green hot peppers were thinly sliced and added to the zucchini and onions for bit of zip; after all when you get that old food processor whirling away, it's hard to stop! Sorry to Mrs. Phactor who had other plans for those peppers, the old two cooks in one kitchen problem. This recipe can also be doubled without any problem.  And it also works for cucumbers.
Here in the great midwest, August always means the same thing to gardeners, way too many zucchini. Neighbors, even vegetarians, even starving graduate students, will run and hide if they see you coming with a basket, and they should if you let them grow to more and 7-8" in length. The trouble is that when you're away for a few hours, and the squash go untended, zucchini can grow to the size of torpedoes. After making the obligatory zucchini bread, 6 loaves, out of just one torpedo, best to just admit the error and toss the rest. Even when picked at an optimal size, zucchini have a way of overwhelming you, so for decades now, any zucchini recipe that made something new was given a try, and most have been, well, less than exciting. And that's how it is with recipes, and cookbooks, and the Phactors know because when it comes to exotic cookbooks, containing all those culinary promises of gastronomic delight, we have no will power, and most of those recipes go untried, but every now and then you get a truly remarkable cookbook that yields 4 or 5 really outstanding recipes that get added to your cooking lexicon. My point being that many get tried, and few measure up, and when offering up a recipe to my readers, whose response to my initial recipe offering was rather disappointing, a result that can perhaps be attributed to people being creatures of habit and not willing to readily change their dietary staples, it has gone through a filter and passed the test; something that's really good, really easy, and in this case uses up those excess zucchini. These zucchini pickles don't take long to make, and piled on top of a grilled sausage or hotdog, they are simply outstanding. One small change: add 1 tsp of pickling spices to the vinegar mix for a bit more of a complex flavor. In a recent batch of these pickles, two long, thin green hot peppers were thinly sliced and added to the zucchini and onions for bit of zip; after all when you get that old food processor whirling away, it's hard to stop! Sorry to Mrs. Phactor who had other plans for those peppers, the old two cooks in one kitchen problem. This recipe can also be doubled without any problem.  And it also works for cucumbers.  
 The yellow-fringed water snowflake (Nymphoides geminata) is one of quite a number of tropical and subtropical species in this genus. Nymphoides means "like Nymphaea", like waterlilies, and while sort of like waterlilies in the growth pattern of some species, they are not closely related at all. For small, shallow water gardens these can be quite nice, easy to grow, showy plants, and while growing this plant for reasons now forgotten the Phactor noticed the fringed petals. Now anything that increases the size of a floral display is generally interpreted as enhancing its ability to get visited and pollinated, and this was how the function of the fringe was explained. Quite by accident, the ever observant Phactor discovered that the fringe had a second function. Experimentation demonstrated that the fringe interacts with the surface tension of water, the same principle that allows a water strider to walk on water, and rather than rising water drowning the tethered flowers, it closes the petals, and when the water level recedes the flower reopens undampened, a useful adaptation for a plant growing in shallow water subject to rapid and brief changes in water levels. That was some real "fringe science", but without question it's a fabulous flower.
 The yellow-fringed water snowflake (Nymphoides geminata) is one of quite a number of tropical and subtropical species in this genus. Nymphoides means "like Nymphaea", like waterlilies, and while sort of like waterlilies in the growth pattern of some species, they are not closely related at all. For small, shallow water gardens these can be quite nice, easy to grow, showy plants, and while growing this plant for reasons now forgotten the Phactor noticed the fringed petals. Now anything that increases the size of a floral display is generally interpreted as enhancing its ability to get visited and pollinated, and this was how the function of the fringe was explained. Quite by accident, the ever observant Phactor discovered that the fringe had a second function. Experimentation demonstrated that the fringe interacts with the surface tension of water, the same principle that allows a water strider to walk on water, and rather than rising water drowning the tethered flowers, it closes the petals, and when the water level recedes the flower reopens undampened, a useful adaptation for a plant growing in shallow water subject to rapid and brief changes in water levels. That was some real "fringe science", but without question it's a fabulous flower.
 Search engines, the card catalogs of the digital age, often surprise you with unsought items, and so it was while searching for articles on tree architecture (how trees are constructed), the search engine happened upon a year old article on tree architecture of a very different sort, growing live trees to make a tower.  In general this is pretty cool, although not at all a new thing as the Phactor pointed out in a blog some time ago.  Still supporting a framework with live tree axes woven into a magnificently large espaliered tower is quite a trick.  One of the interesting things about both willows and twigs is that both grow around objects very well and both will readily fuse axes, although figs are better at forming woody roots from stems.   This puts whole new meaning on the idea of a tree house.
Search engines, the card catalogs of the digital age, often surprise you with unsought items, and so it was while searching for articles on tree architecture (how trees are constructed), the search engine happened upon a year old article on tree architecture of a very different sort, growing live trees to make a tower.  In general this is pretty cool, although not at all a new thing as the Phactor pointed out in a blog some time ago.  Still supporting a framework with live tree axes woven into a magnificently large espaliered tower is quite a trick.  One of the interesting things about both willows and twigs is that both grow around objects very well and both will readily fuse axes, although figs are better at forming woody roots from stems.   This puts whole new meaning on the idea of a tree house.