Acharagma huasteca Elhart

국표에 없다.

Clan:	Acharagma    (Taylor) Glass, 1998
Species:	Huasteca Elhart, 2011

Synonyms

Escobaria aguirreanum subsp. kalasii nomen nudum Acharagma aguirreanum subsp. kalasii nomen nudum
Distribution
Mexico (Nuevo León), Huasteca canyon, near the village of Santa Catarina /Elhart s.n./, Huasteca canyon, El Pajonal /ŠN 2010/

Plants grow in inaccessible and shady, closed canyons of the Sierra Madre Oriental. Habitats are located at the foot of the rocks and in the narrow vertical fissures of the steep limestone walls. The accompanying vegetation consists of various species of the families Agavaceae, Bromeliaceae and Cactaceae and various ferns.

Type locality:

Huasteca Canyon, near Santa Catarina, Nuevo León, Mexico (Z. Elhart, February 10, 2008)

 

Description

Stem:	plants from the bottom reflect and form small clusters, the stem is slender, shortly cylindrical, 17-25 mm wide, 70-100 mm high; total of 8 ribs divided into rounded nipples, 6-8 mm wide, 10 mm long, 3-4 mm high, areola circular, slightly compressed, initially with white wool, later bare; epidermis dark grass green, in summer colored to red
Thorns:	10-14, central difficult to distinguish from marginal, needle-shaped, straight, rarely slightly curved, for the most part yellowish-white to ivory color, towards the tip gradually changing to reddish to reddish brown, in older thorns the color fades, upper spines often colored with dark shades throughout their length
	Fringe:	9-13, radially divergent, ascending, (3-)4-7(-10) mm long
	Center:	1-3, 7-10(-18) mm long, slightly thicker than marginal, at least 1 erect
Flower:	appears on the crown of the plant, broadly funnel-shaped, 20 mm wide, 20 mm long, creamy yellow; petals broadly oblanceolate, the tips turn outward from the flower, the inner petals with jagged edges, the apex spike, the outer petals with a pronounced reddish medium stripe; stamens whitish-yellow, anthers yellow, curved inward; stigma with 4-5 yellow lobes
Fruits:	reddish-pink, club-shaped, 3.5-4.5 mm wide, 10-14 mm long, with dried petal residue
Seeds:	ovoid, 0.75 mm wide, 1.2 mm long, glossy black, dough finely jammed

 

Notes

Acharagma huasteca is similar in appearance to A. aguirreanum, which is usually distinguished by solitary growth, spherical to flattened spherical stem and long, narrowly funnel flower. In my opinion, this is a similar relationship to that of A. roseanum and its subspecies galeanense. For this reason, it is likely that in the future we may see a combination of A. huasteca as a subspecies of the taxon A. aguirreanum.

In addition to the collections of Z. Elhart, the taxon was discovered in 2010 by a group of Czech cacti in the area of El Pajonal, specifically by Richard Kalaš. The discovered plant was provisionally named as Escobaria aguirreana subsp. kalasii (ŠN 2010), and therefore it is possible to discover the described plant in some collections and price lists under this designation.

See also the discussion "Escobaria (subg. Acharagma) aguirreana subsp. kalasii nomen provisorum - a new discovery from the state of Nuevo León".

Acharagma huasteca (escobaria.cz)

https://youtu.be/zLvzGNwtM0k