Flora of North America species comparison

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Perityle microglossa

Perityle vitreomontana

short-Ray Rock daisy

Glass Mountain Rock daisy
Habit Plants 3–10 cm (densely leafy); pilose.
Leaves

petioles 2–4 mm;

blades subovate to ovate-deltate, 5–7(–10) × 5–8(–12) mm, margins obtuse-serrate to incised-lobed.
Peduncles

1–3(–8) mm.
Involucres

narrowly campanulate.
Disc florets

11–16;

corollas white, tubes 1 mm, throats tubular, 2.5 mm, lobes 1 mm.
Phyllaries

9–12, linear-lanceolate, 4–5 × 0.8–1.2 mm.
Heads

usually in corymbiform arrays, rarely borne singly, 6–7 × 3–4 mm.
Cypselae

1.9–2 mm;

pappi of 2–6 bristles 0.5–2 mm plus vestigial nubs between bristles, or of 10–20 bristles 0.1–2 mm.
2n

= 34.

Perityle microglossa

Perityle vitreomontana
Phenology Flowering spring–fall.
Habitat Limestone bluffs
Elevation 1500–2200 m (4900–7200 ft)
Distribution
from FNA
AZ; TX; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

Varieties 2 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Perityle vitreomontana is known only from in the Glass Mountains of Brewster County. Although P. vitreomontana resembles P. bisetosa, close study of the pappus reveals that it belongs in sect. Pappothrix. Leaf and flower morphology suggest the relationship of P. vitreomontana to P. rupestris var. albiflora.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 321. FNA vol. 21, p. 319.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Peritylinae > Perityle > sect. Perityle Asteraceae > tribe Heliantheae > subtribe Peritylinae > Perityle > sect. Pappothrix
Sibling taxa
P. aglossa, P. ajoensis, P. ambrosiifolia, P. angustifolia, P. bisetosa, P. cernua, P. ciliata, P. cinerea, P. cochisensis, P. congesta, P. coronopifolia, P. dissecta, P. emoryi, P. fosteri, P. gilensis, P. gracilis, P. huecoensis, P. intricata, P. inyoensis, P. lemmonii, P. lindheimeri, P. megalocephala, P. parryi, P. quinqueflora, P. rupestris, P. saxicola, P. specuicola, P. stansburyi, P. staurophylla, P. tenella, P. vaseyi, P. villosa, P. vitreomontana, P. warnockii
P. aglossa, P. ajoensis, P. ambrosiifolia, P. angustifolia, P. bisetosa, P. cernua, P. ciliata, P. cinerea, P. cochisensis, P. congesta, P. coronopifolia, P. dissecta, P. emoryi, P. fosteri, P. gilensis, P. gracilis, P. huecoensis, P. intricata, P. inyoensis, P. lemmonii, P. lindheimeri, P. megalocephala, P. microglossa, P. parryi, P. quinqueflora, P. rupestris, P. saxicola, P. specuicola, P. stansburyi, P. staurophylla, P. tenella, P. vaseyi, P. villosa, P. warnockii
Subordinate taxa
P. microglossa var. microglossa
Name authority Bentham: Bot. Voy. Sulphur, 119. (1844) Warnock: SouthW. Naturalist 12: 475, fig. 1. (1967)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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