RE: Re: A new crested iris?


 

Worth pointing out - a description of Iris milesii, also named by Baker, appears on the same page as the original description of Iris wattii.  The wording is similar, including the "tall, stout" part.  The link Sean provided doesn't go directly to the page of the description, so this should help shorten the search for the correct page (273).
 
http://www.biodiversitylibrary.org/item/115813#page/279/mode/1up
 
I hope one day to be able to go look at plants and herbaria in India myself.  Not sure if I'll ever get the opportunity though.
 
I'll be anxious to learn more as these trips to India bring more plants and information to light.  It is fun to guess and make suppositions about them, but it is even more fun to see what is really there.  Too bad I have so much trouble growing most of the Evansia species here in central NM.  Everything is wrong for most of them (dry hot summers, cold winters, alkaline soil, very low humidity, strong winds, etc.).  It's a great place for growing many other Iris species species though.
 
Dave
 

To: iris-species@yahoogroups.com
From: iris-species@yahoogroups.com
Date: Wed, 28 Jan 2015 15:49:12 -0700
Subject: RE: [iris-species] Re: A new crested iris?

 
A few more thoughts.
 
There seems to be lots of confusion over Asian Evansia species names, and when I look at photos of plants on the internet it is apparent that there is a lot of confusion as to identities of cultivated plants as well.  I'm not even entirely sure how good my concept of the entities involved is.
 
The name "wattii" has been bounced around quite a bit. In fact there are at least two very different looking types of plant posted to the SIGNA web site under this name. However, I strongly suspect that nobody is really growing true I. wattii. How an apparently smallish Indian plant, got tranformed into a Chinese plant multiple feet tall is indeed a good question.  It's not entirely clear how tall Baker's plants were though.  He does start by saying "tall, stout", but those are highly subjective terms, and I would need to read more of Baker's descriptions (or see the type specimens) to have a better feel for his meaning.  When describing the "stem" he was clearly refering to the inflorescence and not a true stem at all.  I think that it is significant that Dykes (who apparently had type collection material to examine) considered I. wattii a synonym of I. milesii.  I think this implies that the type material of I. wattii must be at least similar in traits and size to that species.  Current interprettation seems to dismiss this similarity to I. milesii out of hand, but it appears to be done without comment or justification, and perhaps the kinship should be reexamined?  I think it was he (and perhaps others?) who stated that the type material actually does have crested falls (sepals).
 
Earlier cultivated specimens out of China, bearing the name I. wattii, were really I. japonica or what is now I. confusa (and plants of those species are still mislabelled as I. wattii sometimes).
 
More recent collections from China called "I. wattii" also seem (to me) to have more in common with I. confusa than with anything else.  "Johnson's clone", and one I found on an Australian web site called "I. japonica 'Sylvia'" (looking nearly identical to 'Johnson's clone' - but perhaps mislabeled) have distinctly drooping falls and a distinctive white (spotted darker) crest, but otherwise they seem to be basically the same sort of cane-producing Chinese things as I. confusa, and I expect they probably aren't that related to the plant originally collected in far eastern India (or perhaps they represent something intermediate in character).
 
There doesn't seem to be any material from the mountains of far eastern India in cultivation at all (???), which is from where the species was actually described, and which would be where the species should be looked for. 
 
The photos from India are from the same region as the type collection of I. wattii, and they would seem to fit the original description at least moderately well, so it seems probable to me that they could be the real I. wattii.  It's hard to get a proper perspective of size from the photos, and I suspect the flowers may appear to be a bit larger than they really are (??).
 
There is type material of Iris wattii deposted in the Central National Herbarium in Howrah, India - not exactly a convenient visit for me - and perhaps (??) at Kew.
 
Dave
 

To: iris-species@yahoogroups.com
From: iris-species@yahoogroups.com
Date: Wed, 28 Jan 2015 10:24:49 -0500
Subject: Re: [iris-species] Re: A new crested iris?

 

Here's the description of wattii from The Flora of British India for those who are curious:



I. Wattii, Baker mss.; tall, stout, leaves broadly ensiform, flower-heads racemose on stout long peduncles, spathes 2-3-fld., perianth-tube short infundibular, sepals obovate-spathulate, blade as long as the claw, petals rather shorter obovate-oblong, style-arms with 2-fid laciniate tips.




MUNNIPORE; summit of Kongui, alt. 6000 ft., Watt.


Stem with 5-6 flower-heads on erecto-patent peduncles. Leaves thin, 18 by 1½-2 in., as long as the stem. Spathes with the outer valve 1-1½ in., lanceolate, thin, green; inner much shorter, oblong, obtuse; pedicels short, jointed with the ovary. Flowers pale lavender blue, tube ½ in.; blade of sepals ¾ in. broad, striped and spotted with purple, throat yellow; petals ½ in. broad; style-arms ½ in. long, crest deltoid laciniate. Capsule small, oblong, obtusely trigonous. –Baker, from whose description much of the above is taken, says of the sepals, "apparently not crested."–Bhotan specimens from Griffith of this or an allied species have stout compressed grooveed stems and firmer spathe-valves.



It seems to me that the flowers of the mystery iris are larger and that they appear to be crested. How did the name of 18-inch-tall wattii come to be attached to a species with bamboolike stems to 6 feet!?


Sean Z



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