There’s a new addition to the series of BSBI Handbooks. Broomrapes of Britain & Ireland is due to be published on 1st May and BSBI members will be able to benefit from an exclusive introductory offer of £12.50 (plus P&P) which will save them £5 compared the RRP of £17.50.
There are two authors behind this new book: Prof Chris Thorogood – Deputy Director and Head of Science at University of Oxford Botanic Garden & Arboretum, author, artist, media star… - and Dr Fred Rumsey, Senior Curator in Charge of Historical Collections, Algae, Fungi and Plants Division, Life Sciences Department at the Natural History Museum, London. Fred is already well-known to readers of this News blog, but Chris maybe isn’t, so I approached him first and asked him to tell us a bit more about himself and about Broomrapes of Britain & Ireland…
LM: Chris, before we start talking about the new Handbook,
could you tell us a bit more about yourself please, how you got started as a
botanist, some of the many strings to your bow and your particular area of
|Chris in his element, hanging
out with water-lilies
CT: Sure Louise! Well I have been fascinated by plants for as long as I can remember. As a kid my bedroom windowsill was a bit of a jungle. And I was growing broomrapes at the age of 12 – I guess it was inevitable that I was to become a botanist really! Today, I am the Deputy Director and Head of Science at the University of Oxford Botanic Garden and Arboretum. The research I do here centres on processes that shape the evolution of parasitic plants and also carnivorous plants – those that can obtain food in ways other than photosynthesis.
also work on the floras that grow in Biodiversity Hotspots (priority areas for
conservation) around the world, for example Japan and the Mediterranean, and in
the Middle East. Working with scientists from other disciplines, such as
physics, another aspect of my research examines how plants can inform design in
technology. My work has taken me around the world where I have been lucky
enough to see some beautiful plants in breath-taking places. My passion in life
is painting. When I’ve seen something beautiful in nature (which luckily for me
happens quite a lot), well I just have an irrepressible urge to capture it on
canvas… And when I’m not scribbling or messing about with plants, you might
find me tweeting, posting
things on Instagram
or chatting away on BBC Radio 4’s Gardeners’
|Pages from the new Handbook...
LM: Blimey, you’re a busy man and a bit of a botanical
superstar! So how did you become involved in working on this BSBI Handbook?
CT: Years ago, my PhD research examined broomrapes Orobanche. I used molecular tools to answer evolutionary questions. In other
words, in the lab, I examined broomrapes’ DNA to find out how they were forming
new species. The results were surprising and quite exciting: populations of
common broomrape O. minor that looked the same, were behaving very
differently. In short, our work showed that they were adapted to specific hosts
(clovers for example); and because different hosts have different preferences
(sea cliffs, fields, car parks etc.), populations of broomrape can become
genetically isolated from one another. And this paves the way for new species to
evolve – a process we call incipient speciation.
You can find out more about one of the forms we described
last year here.
|Orobanche minor - this one is
Image: C. Thorogood
LM: Ooh that’s based on this
paper that you and Fred submitted to British & Irish Botany, BSBI’s
Open Access, in-house scientific journal! Any News & Views readers who
missed out on the paper last year (we flagged it here)
can read it now – it’s a corker and beautifully illustrated by Chris and Fred!
CT: The handbook includes observations we made during the
course of that research, and the many years that my co-author Fred and I have
spent in the field, peering at broomrapes
LM: That’s ok Chris, you’re among your people here – BSBI
has thousands of members who spend their time in the field peering at plants! So,
the new book is 152 pages long, covers 16 species and 7 infra-specific taxa in
the family Orobanchaceae. When did you and Fred start working on the book?
CT: You could say that the idea for the handbook has been
knocking about for years. But in fact we only started working on it in earnest
last summer (July 2020). Fred and I got so carried away that we spent many long
nights and weekends working on it (obsessively some might say), so we finished
it in a much shorter time than expected.
LM: Well we’re very glad that you did! Can you give us an
example please of one of the species you cover and what we can expect to find
out from the new Handbook about its identification, distribution and current conservation
Image: C. Thorogood
LM: Sounds like you and Fred visited a lot of locations across Britain and Ireland in the course of your research. Are there any that particularly stand out in your memory?
CT: Well Louise our broomrape safaris have taken us to some
glamorous places, from supermarket carparks, to death-defying cliffs! When we
weren’t ducking golf balls on Sandwich Bay golf course or taking the occasional
abseil down a sea cliff, I guess I would have to say my favourite stomping
ground for the plants is around Essex and Kent. Fred and I both grew up in this
area, and in some respects, this region is the broomrape capital of Britain and
Ireland. That said, beautiful broomrapes grow up and down the region, often in
some very beautiful places indeed.
LM: Ooh so lots of opportunities to visit lovely places and
peer at plants – that sounds like great fun! How about herbaria – did you two
visit many herbaria to look at specimens? On which subject – how exactly do you
press a broomrape? They are quite chunky! Do they have to be pickled rather
|Pages from the new Handbook...
these show the life-cycle of
CT: (Face-palm emoji) ahem broomrapes and herbaria…. well the thing is, they
preserve terribly, Louise. This is a real headache for the broomrape
connoisseur. They have no leaves to speak of, and their colours (lovely in
life) turn a rather hideous shade of yellow or brown. In short, we’re left with
a squashed asparagus. I exaggerate: in fact, there is a lot you can tell from a
herbarium specimen if you look closely, for example the calyx shape, the amount
of hairiness of the floral parts, and multifarious other bits and pieces. But
is isn’t easy. Pressed specimens are best if they include notes on colours seen
at flowering time, possible host plant species, and, best of all, a floral
dissection or two.
LM: Yes, as we always say about herbarium specimens, the supporting
info is as important as the specimen itself. And thanks for confirming my
suspicions about the difficulties in preserving broomrape specimens – squashed
asparagus indeed! But moving on, I imagine you also got a lot of feedback from BSBI County Recorders and many of our
“ordinary members” who go out plant recording?
CT: BSBI County Recorders and enthusiasts up and down the
country are incredibly helpful Louise. The maps in the handbook simply wouldn’t
exist without them. And many provided their photos too. Our sincere thanks to
|Some of Chris's pen & ink drawings
CT: Thank you Louise. Fred and I both illustrate. I often use pen and ink which is quite a precise way to capture a plant, and is the perfect medium for depicting, for example, hairiness (an important diagnostic in broomrapes). I also use watercolours and (less conventionally) oil paints (which were used for the front cover). I find oils capture the soul of a plant in the way watercolours cannot always. If done in a leisurely way, a line drawing can be done in a day; a watercolour in a week; an oil painting in two.
|Pages from the new Handbook...
LM: Are there photographs too?
CT: There are (quite a few in fact), but I am not really a
photographer. Many people very kindly provided their photos for the book and it
wouldn’t be the book it is without them.
LM: Yep, that amazing BSBI community again! I hear there are
also BSBI distribution maps for
the taxa, and that some of the maps compare the distribution of the various
taxa with their primary hosts?
CT: Correct. We were fascinated by the idea of charting host
and parasite in parallel to see if there were any insights as to why the
broomrapes occur where they do. Interestingly, by way of example, thistle
broomrape is exceptionally rare and confined to Yorkshire; yet
its most common host – the creeping thistle Cirsium arvense is of course
ubiquitous. There is a lot more than meets the eye to these very particular
LM: Yes, they certainly are intriguing and that’s one reason
why BSBI’s Publications committee thought
people would be interested in a Handbook all about them. Finally: all BSBI
Handbook authors benefit
from an editor to help them through the process towards publication. Who
was your editor?
|Chris admiring an Orobanche
LM: Wow, David is a legend (newcomers to BSBI can read a bit about him here), so well done you for bagging him as your Editor! Well the new Handbook really does look amazing, many thanks to you and Fred for all your hard work that has brought us this fabulous new addition to BSBI’s publications portfolio and thank you also for talking to us today. Before you go, may I issue an invitation to you please? We are not sure at this point if our 2021 Exhibition Meeting in November will be held as a live event at the Natural History Museum in London or as a zoom event – or perhaps some kind of hybrid! But in whatever way it takes place, would you be up for giving us a short talk about broomrapes, maybe a poster too and perhaps we can have some kind of promotion around the Handbook? Fred is always involved in our Exhibition Meetings but it would be great to have both Handbook authors on the day – so, how about it?
CT: I would be delighted to, Louise.
LM: Thanks Chris, it’s a deal! Now, readers will want to
know how to get hold of a copy of the new Handbook.
If you are a BSBI member, there is a flyer tucked inside the
issue of BSBI News which is winging its way to you as we speak. It explains
how BSBI members can benefit from our exclusive offer and save £5 compared to
the RRP. You can either use the flyer to order your copy by post before the end
of June or else click here to order
your copy via the password-protected members-only area of the BSBI website
(you'll need to have your password to hand – email me if you’ve forgotten it and
don’t forget to include your membership number).
If you are not a BSBI member, you have two options: you will
be able to buy the book from Summerfield
Books and other natural history book-sellers in June. Or why not join BSBI today
and start enjoying all the benefits of membership, including this special
offer? Take a look at our Join Us page which lists all the benefits of BSBI
membership and there's a secure payment option, making it very quick and easy
for you to become a BSBI member and start