View source for Villadia ← Villadia You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Villadia |accepted_authority=Rose in N. L. Britton and J. N. Rose |publications={{Treatment/Publication |title=in N. L. Britton and J. N. Rose, New N. Amer. Crassul., |place=3. 1903 , }} |basionyms= |synonyms= |hierarchy=Crassulaceae;Villadia |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Crassulaceae]]</div><div class="higher-taxon"><small>genus</small>[[Villadia]]</div></div> |etymology=For Manuel M. Villada, 1841–1924, Mexican scientist |volume=Volume 8 |mention_page=page 150, 172, 226, 227, 228 |treatment_page=page 225 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism reproduction;whole_organism some measurement;whole_organism pubescence;whole_organism growth form"><b>Herbs </b>[subshrubs], perennial, (dying to near base [or not], new shoots forming dense rosettes often by anthesis), not viviparous, 0.5–2.5 dm, glabrous [pubescent].</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture;stem growth form or texture"><b>Stems </b>decumbent-ascending [erect], branching [or not], herbaceous [± woody].</span> <span class="statement" id="st-d0_s2" data-properties="leaf duration;leaf position;leaf position;leaf arrangement;leaf variability;leaf size;leaf architecture;leaf fusion"><b>Leaves </b>persistent, basal and cauline, alternate, ± alike, gradually smaller, sessile, not connate basally;</span> <span class="statement" id="st-d0_s3" data-properties="blade arrangement or course or shape;blade shape;blade some measurement;blade texture;base architecture or shape;margin architecture or shape">blade linear, subterete, 1–2.5 cm, fleshy, base spurred, margins entire;</span> <span class="statement" id="st-d0_s4" data-properties="vein prominence">veins not conspicuous.</span> <span class="statement" id="st-d0_s5" data-properties="terminal thyrse size or width"><b>Inflorescences </b>terminal spikes or narrow thyrses.</span> <span class="statement" id="st-d0_s6" data-properties="flower architecture"><b>Pedicels:</b> flowers subsessile.</span> <span class="statement" id="st-d0_s7" data-properties="flower orientation;flower architecture"><b>Flowers </b>erect, 5-merous;</span> <span class="statement" id="st-d0_s8" data-properties="sepal fusion;sepal variability">sepals distinct, all alike;</span> <span class="statement" id="st-d0_s9" data-properties="petal orientation;petal fusion;petal fusion;petal coloration">petals spreading from middle [erect], connate basally, nearly distinct, rose;</span> <span class="statement" id="st-d0_s10" data-properties="calyx dehiscence;corolla dehiscence">calyx and corolla not circumscissile in fruit;</span> <span class="statement" id="st-d0_s11" data-properties="nectary shape">nectaries cuneate;</span> <span class="statement" id="st-d0_s12" data-properties="stamen size or quantity">stamens 2 times as many as sepals;</span> <span class="statement" id="st-d0_s13" data-properties="filament fusion">filaments adnate to corolla base;</span> <span class="statement" id="st-d0_s14" data-properties="pistil orientation;pistil fusion">pistils erect, nearly distinct;</span> <span class="statement" id="st-d0_s15" data-properties="ovary base architecture or shape">ovary base truncate;</span> <span class="statement" id="st-d0_s16" data-properties="style size or quantity">styles 2+ times shorter than ovary.</span> <span class="statement" id="st-d0_s17" data-properties="fruit orientation"><b>Fruits </b>erect.</span> <span class="statement" id="st-d0_s18" data-properties="rib relief"><b>Seeds </b>obovoid, with papillose ribs.</span> <span class="statement" id="st-d0_s19" data-properties="seed shape;x chromosome quantity;x chromosome quantity;x chromosome quantity">x = 9–17, 20–22, 33+.</span><!-- -->{{Treatment/Body |distribution=Tex.;Mexico;Central America (Guatemala);South America (Peru) |discussion=<p>Species ca. 25 (1 in the flora).</p><!-- --><p>The status of Villadia is debatable. The former sect. Altamiranoa (Rose) R. T. Clausen, which clearly intergrades with Mexican Sedum and differs chiefly in its connate petals, seems better placed in Sedum (C. H. Uhl and R. V. Moran 1999). Villadia proper is weakly distinguished from the huge and multifarious genus Sedum, now treated by H. ’t Hart (1995) as paraphyletic, but it seems a taxonomic convenience to remove such peripheral groups as this (Moran 1990). Uhl (1963, 1992) has found that Altamiranoa and Villadia belong to the same huge comparium as Echeveria, Graptopetalum, Lenophyllum, and others. Villadia is like Echeveria in having a remarkably long, descending series of evidently diploid chromosome numbers, namely 21, 20, and 17 to 9, as well as a few higher, polyploid numbers (Uhl and Moran). R. C. H. J. van Ham and ’t Hart (1998) found that Villadia is closely related to least advanced Eurasian Sedum and the Mexican genera Echeveria and Pachyphytum.</p><!-- --><p>Villadia misera (Lindley) R. T. Clausen is reported from Arizona under the synonym V. parviflora (Hemsley) Rose; R. T. Clausen (1940), without comment, cited a collection by W. B. Cannon and F. E. Lloyd (NY [also US]), supposedly from the San Francisco Mountains. There is no other record for Arizona, and the nearest undoubted locality is in Zacatecas, some 1500 km to the southeast. These are cultivated specimens, and the label locality evidently is wrong.</p> |tables= |references= }}<!-- --><!-- -->{{#Taxon: name=Villadia |author=Reid V. Moran |authority=Rose in N. L. Britton and J. N. Rose |rank=genus |parent rank=family |synonyms= |basionyms= |family=Crassulaceae |distribution=Tex.;Mexico;Central America (Guatemala);South America (Peru) |reference=None |publication title=in N. L. Britton and J. N. Rose, New N. Amer. Crassul., |publication year= |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V8/V8_471.xml |genus=Villadia |base architecture or shape=spurred |blade arrangement or course or shape=linear |blade shape=subterete |blade some measurement=1cm;2.5cm |blade texture=fleshy |calyx dehiscence=not circumscissile |corolla dehiscence=not circumscissile |filament fusion=adnate |flower architecture=5-merous;subsessile |flower orientation=erect |fruit orientation=erect |leaf architecture=sessile |leaf arrangement=alternate |leaf duration=persistent |leaf fusion=connate |leaf position=cauline;basal |leaf size=smaller |leaf variability=alike |margin architecture or shape=entire |nectary shape=cuneate |ovary base architecture or shape=truncate |petal coloration=rose |petal fusion=distinct;connate |petal orientation=spreading |pistil fusion=distinct |pistil orientation=erect |rib relief=papillose |seed shape=obovoid |sepal fusion=distinct |sepal variability=alike |stamen size or quantity=2 times as many as sepals |stem architecture=branching |stem growth form or texture=herbaceous |stem orientation=decumbent-ascending |style size or quantity=2+ times shorter than ovary |terminal thyrse size or width=narrow |vein prominence=not conspicuous |whole_organism duration=perennial |whole_organism growth form=herb |whole_organism pubescence=glabrous |whole_organism reproduction=not viviparous |whole_organism some measurement=0.5dm;2.5dm |x chromosome quantity=20;22 }}<!-- -->[[Category:Treatment]][[Category:Crassulaceae]] Templates used on this page: Template:Crassulaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Return to Villadia.