Dichelostemma capitatum submitted as Dipterostemon capitatus

Jane McGary via pbs pbs@lists.pacificbulbsociety.net
Sun, 29 Oct 2023 17:56:10 PDT
I think Jan is right to keep Dichelostemma capitatum, a name people at 
least on the west coast know well. By the way, it's a pretty plant and 
the earliest themid to flower. It favors areas that are moist in spring 
and dry later.

Mary Sue's remark about the number of true stamens (rather than 3 
stamens and 3 staminodes) is a distinction of this plant.

I recommend that the SX and BX publish synonyms along with previous or 
new names, so people won't think they're ordering a marvelous species 
they've never encountered before. I got caught often back when eastern 
European collectors sold seed under names based on the old Soviet 
floras, which often differed from general western concepts.

Jane McGary, Portland, Oregon, USA


On 10/29/2023 2:49 PM, Jan Jeddeloh via pbs wrote:
> When I put together the seed list I cut and paste the names directly from World Flora Online https://www.worldfloraonline.org/ <https://www.worldfloraonline.org/>.  As of now the name they list for this plant is Dichelostemma capitatum so that’s what I used.  I have to use something as my authority and that’s what I’ve decided it will be. World Flora Online  is a well respected source for plants names.  Many plant names are in flux these days and different authorities will use different names.  I’m not trained in taxonomy nor do I have the time or energy to go into the weeds on taxonomy hence my decision to stick with one naming source.
>
> The bottom line is I will be sticking with Dichelostemma capitatum until such time as World Flora Online changes the name.
>
> It’s fine if someone wants to post additional information, as Mary Sue has done,  about naming controversies but I’m staying out of the arguments.  Most of the time a quick google search will reveal any recently used names anyway.
>
> Jan Jeddeloh
>
>> On Oct 29, 2023, at 10:01 AM, Mary Sue Ittner via pbs <pbs@lists.pacificbulbsociety.net> wrote:
>>
>> I noticed in both the recent SX and BX that there is confusion about this species. Dichelostemma capitatum been restored to a previous name, Dipterostemon capitatus (Benth.) Rydb.
>> First published in Bull. Torrey Bot. Club 39: 111 (1912), and that is what the Jepson Manual, the authority on California plants is now calling it along with Plants of the World Online and iNaturalist. However, the Flora of North America is still including it under Dichelostemma capitatum, but since I've been working on the wiki I have noticed that source to be very slow in updating "bulb" names when they are changed. And World Flora Online has not updated it either.  I don't know what other states where it grows are calling it. So some people have submitted corms and seed under one name and some under the other.
>>
>> It is very confusing because from a distance this plant looks a lot like Dichelostemma multiflorum and Dichelostemma congestum and their names have not changed, but it has always been different from them in having 6 stamens instead of 3. It you are interested in reading the paper where the change was proposed here is the link:
>> https://phytoneuron.net/2017Phytoneuron/…
>>
>> And by the way it has previously been known as:
>> Brodiaea capitata Benth. in Pl. Hartw.: 339 (1857)
>> Dichelostemma capitatum (Benth.) Alph.Wood in Proc. Acad. Nat. Sci. Philadelphia 20: 173 (1868)
>> Dichelostemma pulchellum var. capitatum (Benth.) Reveal in Taxon 32: 294 (1983)
>> Hookera capitata (Benth.) Kuntze in Revis. Gen. Pl. 2: 712 (1891)
>> Milla capitata (Benth.) Baker in J. Linn. Soc., Bot. 11: 381 (1870)
>>
>> Mary Sue
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