Flora of North America species comparison

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Muilla

muilla
Habit Herbs, perennial, scapose, from fibrous-coated corms.
Leaves

1–10, strictly basal;

blade linear, elongate, flat, not keeled or channeled, surrounded by fibrous sheath.
Scapes

1–2, cylindrical.
Inflorescences

umbellate, terminal, bracteate;

bracts several, white or greenish white, scarious.
Flowers

perianth subrotate, narrowly oblong;

tepals 6, spreading, mostly distinct, only shortly connate at base, white to greenish white or bluish, sometimes tinged with lilac, subequal;

stamens 6, epitepalous, inserted near base of tepals;

filaments filiform, subulate, or conspicuously dilated, sometimes overlapping or connate;

anthers versatile, introrse;

pistil 3-carpellate;

ovary superior, sessile, 3-locular, ovules several;

style persistent, clavate;

stigma 3-lobed, minute;

pedicel slender, not articulate.
Fruits

capsular, slightly lobed, globose, dehiscence loculicidal.
Seeds

black, angled, coat with crust.
x

= 7, 8, 10.

Muilla
Distribution
from USDA
w North America
[BONAP county map]
Discussion

Species 3 (3 in the flora).

The distribution of the species in this genus is poorly documented (L. W. Lenz 1975b; J. R. Shevock 1984). R. F. Hoover (1955) transferred Bloomeria clevelandii to Muilla. However, molecular and morphological evidence indicates that B. clevelandii, B. crocea, and B. humilis, all treated here under Bloomeria, are more closely related to Triteleia, and that the three species treated here under Muilla are more closely related to Androstephium (R. Y. Berg and J. R. Maze 1966; J. C. Pires 2000).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Filaments filiform or subulate; anthers green, blue, or purple; tepals greenish white with brownish midveins; coast and valleys of California.
M. maritima
1. Filaments conspicuously dilated; anthers yellow; tepals white often tinged with lilac, or whitish or bluish with green abaxial midvein; mountains and deserts of California and Nevada.
→ 2
2. Filaments dilated entire length; scape 3–5 cm; leaves 1(rarely 2); tepals bluish or whitish, with green abaxial midvein; perianth lobes 3–6 mm; deserts of California and Nevada.
M. coronata
2. Filaments dilated only basally; scape 15–50 cm; leaves 3–5; tepals white, often tinged with lilac; perianth lobes 6–8 mm; mountains of California and Nevada.
M. transmontana
Source FNA vol. 26, p. 334. Authors: J. Chris Pires, James L. Reveal.
Parent taxa Liliaceae
Subordinate taxa
M. coronata, M. maritima, M. transmontana
Name authority S. Watson ex Bentham: in G. Bentham and J. D. Hooker, Gen. Pl. 3: 801. (1883)
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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