I recently read the account of Colonal Fawcett's exploration of South America - 'Journey to the Lost City of Z'. This thread isn't about him or his explorations, however, but just one thing that he comments on in his account. The journals are peppered with his observations on natural history and this involves one of those observations. From pp75 -77...

.. Talking of birds, all through the Peruvian and Bolivian Montana is to be found a small bird like a kingfisher, which makes its nest in neat round holes in the rocky escarpment above the river. These holes can plainly be seen, but are not usually accessible, and strangely enough they are found only where the birds are present. I once expressed surprise that they were lucky enough to find nesting-holes conveniently placed for them, and so neatly hollowed out - as though with a drill.
"They make the holes themselves." The words were spoken by a man who had spent a quarter of a century in the forests. "I've seen how they do it, many a time. I've watched, I have, and seen the birds come to the cliff with leaves of some sort in their beaks, and cling to the rock like woodpeckers to a tree while they rubbed the leaves in a circular motion over the surface. Then they would fly off, and come back with more leaves, and carry on with the rubbing process. After three or four repetitions they dropped the leaves and started pecking at the place with their sharp beaks, and - here's the marvellous part - they would soon open out a round hole in the stone. Then off they'd go again, and go through the rubbing process with leaves several times before continuing to peck. It took several days, but finally they had opened out holes deep enough to contain their nests. I've climbed up and taken a look at them, and, believe me, a man couldn't drill a neater hole!"
"Do you mean to say that the bird's beak can penetrate solid rock?"
"A woodpecker's beak penetrates solid wood, doesn't it? ...No, I don't think the bird can get through solid rock. I believe, as everyone who has watched them believes, that those birds know of a leaf with juice that can soften up rock till it's like wet clay."

Fawcett relates that at first he dismissed it as a "tall tale", then after hearing further accounts, as a "popular tradition" but eventually he heard another story that convinced him of the existance of this plant that can soften rock. This later story involved a man wearing spurs who, having lost his horse, was forced to walk some distance and passed through thick bush to find on the other side that his spurs had been eaten away. On discussing the matter, this man was informed that what had eaten his spurs away was the wide patch of growth of a certain plant "about a foot high, with dark reddish leaves" that he had passed through. He was told "... That's the stuff the Incas used for shaping stones. The juice will soften rock up till it's like paste. ..."

Much later in the journals Colonel Fawcett returned to the subject of this plant. On page 252, Fawcett is discussing the Incan Empire and states "I have heard it said that they fitted their stones together by means of a liquid that softened the surfaces to be joined to the consistency of clay." He then recounts the following in a footnote.

Another friend of mine told me the following story:
"Some years ago, when I was working in the mining camp at Cerro de Pasco (a place 14,000 feet up in the Andes of Central Peru), I went out one Sunday with some other Gringos to visit some old Inca or Pre-Inca graves - to see if we could find anything worthwhile. We took our grub with us, and, of course, a few bottles of pisco and beer; and a peon - a cholo - to help dig.
"Well, we had our lunch when we got to the burial place, and afterwards started in to open up some graves that seemed to be untouched. We worked hard, and knocked off every now and then for a drink. I don't drink myself, but the others did, especially one chap who poured too much pisco into himself and was inclined to be noisy. When we knocked off, all we had found was an earthenware jar of about a quart capacity, and with liquid inside it.
" 'I bet it's chicha! said the noisy one. 'Let's try it and see what sort of stuff the Incas drank!'
" 'Probably poison us if we do,' observed another.
" 'Tell you what, then - let's try it on the peon!'
"They dug the seal and stopper out of the jar's mouth, sniffed at the contents and called the peon over to them.
" 'Take a drink of this chicha,' ordered the drunk. The peon took the jar, hesitated, and then with an expression of fear spreading over his face thrust it into the drunk's hands and backed away.
" 'No, no, senor,' he murmured. 'Not that. That's not chicha!' He turned and made off.
"The drunk put the jar down on a flat-topped rock and set off in pursuit. 'Come on, boys - catch him!' he yelled. They caught the wretched man, dragged him back, and ordered him to drink the contents of the jar. The peon struggled madly, his eyes popping. There was a bit of a scrimmage, and the jar was knocked over and broken, its contents forming a puddle on the top of the rock. Then the peon broke free and took to his heels.
"Everyone laughed. It was a huge joke. But the exercise had made them thirsty and they went over to the sack where the beer-bottles lay.
"About ten minutes later I bent over the rock and casually examined the pool of spilled liquid. It was no longer liquid; the whole patch where it had been, and the rock under it, were as soft as wet cement! It was as though the stone had melted, like wax under the influence of heat."

(I don't want to get into anything else to do with these accounts other than the plant and it's effect & usage, that is what this thread is about, the accounts are of their time as we can see.)

Well, that is all that I have been able to find so far in reference to this plant.

To summarise - it is described as growing around a foot tall and has dark reddish leaves, and is found in Peru and Bolivia. The leaves are utilised by a particular bird to create its nesting holes in the stone escarpment above rivers. It was reputedly used by the ancient peoples of the region to soften stone to create neat fitting joints for construction. According to the accounts, it may also swiftly corrode metal.
I am also minded of the Mitchell-Hedges crystal skull and I wonder whether, if it exists, the plant could have been used to shape such an artefact as that.

Please - has anyone else ever heard of such a plant from any other source? Or if not, I would still be most interested in your thoughts and comments.

Thanks in advance.

Peace
J

Wow! Thank you for the fascinating story! I've heard of softening the stone from ancient aliens but this is the first of a plant juice being the key to doing so! This sounds like some interesting research to be done.

S&F!

I am sorry i have not heard of a plant like that,but it wouldent suprise if such a plant existed, lets hope it has gone extinct due to deforestoration or similar plagues.

If it softens rock, then why not the bird's beaks?
Is it that specific that it will only soften rock?
Hmm..

Thankyou for your comments so far

I would really like to research this some more. This was the first I had ever heard of such a plant, but it seems to me that it is a well kept secret if it still exists. Unfortunately, there isn't much in the way of botanical detail to follow up. The use of the plant by the birds to make nesting holes is a distinctive feature and might be the key to identifying possible species. My worry is, as already pointed out, that it may have gone extinct over the last century, and if so, the birds that used it may have followed it. I was rather hoping that someone may have heard similar stories, perhaps from folklore or literature from the region or elsewhere.

peace
J

Got a link/source OP?

great story, just wondering why the liquid in the Earthenware jar would not turn this also back to a soft permeable state where either the liquid escaped or turned the jar and surrounding ground rocks into the wet cement type state it supposedly is able to do.
maybe it only effects certain classes of rock or stone and not all.

Originally posted by kdog1982
We have now found out what the plant is, what the leaf is, and it’s quite well known. It’s a very common plant. As a matter of fact, we use it for ornamental purposes. You can buy it in the stores, in a florist’s in New York. The Latin name escapes me, but its got ordinary sort of rather spongy-looking red leaves–it’s red and purple instead of being green. It has a substance in it that is a very strong alkali and not an acid.

That is an interesting item and he does give a little more info, unfortunately, he doesn't give a name for the plant. I have done a bit of digging around but I still haven't managed to identify it. He does say that it is very common so this hadn't ought to be that difficult to figure out. Perhaps I should just pop into a florist and see what they have that has red spongy-looking leaves.

Oh well, it is late here, I shall come back to this tomorrow.

thankyou all for your posts

peace
J

Originally posted by reticledc
If it softens rock, then why not the bird's beaks?
Is it that specific that it will only soften rock?
Hmm..

Huh?

The birds beak and the rock are two totally different materials. What makes you think they would react the same way to the juice?

Hmm wow, I wonder what would be the benefits of this plant?

Wow thats crazy i have never heard of such a leaf but it would be great if we could find it and examine it.