All Floras      Advanced Search
FNA Vol. 28 Page 17 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 28 | Splachnaceae

2. Tayloria Hooker, J. Sci. Arts (London). 2(3): 144. 1816. • [For Thomas Taylor, 1775-1848, British bryologist and coauthor of the Muscologia Britannica].

Hookeria Schwagrichen, Sp. Musc. Frond. Suppl. 1(2): 340, plate 100. 1816, not Smith 1808

Plants in loose or dense tufts, green, yellowish, or sometimes brownish. Stems 0.5-3(-6) cm; sparsely to strongly radiculose. Stem leaves oblong-lanceolate to obovate; margins toothed to entire; apex obtuse, blunt, acute, or acuminate; costa ending well before apex to excurrent; proximal laminal cells long; distal cells oblong-hexagonal. Sexual condition autoicous, often dioicous, rarely synoicous. Seta 0.6-4 cm, flexuose or twisted. Capsule not cleistocarpous, brown, ovoid, oblong-cylindric, pyriform, or conic; hypophysis usually same color as urn, short to elongate, narrower than or occasionally as wide as urn; annulus present, not strongly differentiated; operculum flat, convex, conic, or hemispheric; peristome inserted at or below mouth; prostome absent (present in T. lingulata); exostome teeth 8 or 16, sometimes connate in pairs, rarely split, erect or reflexed, of 2 layers of cells. Calyptra mitrate, short, constricted at base. Spores 9-48 µm, smooth, slightly roughened, or papillose.

Species 45 (6 in the flora): nearly worldwide; tropical to subarctic regions.

Tayloria is the only genus of the family to include both anemophilous and entomophilous taxa; it is also the most polymorphic morphologically. All North American species of Tayloria are anemophilous and none are coprophilous, although the plants often grow on nutrient-enriched substrates. The hypophysis of sporophytes of Tayloria is usually tapered and constricted when dry; the stem leaves are erect to wide-spreading and imbricate to somewhat contorted when dry; and the capsules are erect to suberect or slightly asymmetric.

SELECTED REFERENCE LaFarge-England, C. and D. H. Vitt. 1985. A taxonomic study of Tayloria hornschuchii and T. froelichiana in North America. Bryologist 88: 82-93.

1 Leaves lingulate or rarely obovate to oblong; apices obtuse to rounded, occasionally bluntly acute; margins entire or sometimes with blunt teeth   (2)
+ Leaves obovate, oblong, or ovate-lanceolate, rarely lingulate; apices acute or acuminate, not broadly rounded, sometimes obtuse; margins serrate distally   (4)
2 (1) Prostome present; setae slender, 1.5-4 cm.   1 Tayloria lingulata
+ Prostome absent; setae stout, to 1 cm   (3)
3 (2) Leaves uniformly spaced along stem, slightly contorted when dry; columella included; hypophysis as long as urn; exostome teeth lanceolate, yellow to tan; operculum deciduous.   3 Tayloria froelichiana
+ Leaves crowded at stem and branch apices, stiffly erect-imbricate when dry; columella exserted; hypophysis longer than urn; exostome teeth truncate to obtuse, red to red-brown; operculum systylius.   4 Tayloria hornschuchii
4 (1) Exostome teeth not split.   2 Tayloria serrata
+ Exostome teeth split at base into linear-lanceolate filaments   (5)
5 (4) Plants 1-3 cm; leaf apices blunt or apiculate; setae 1.5-3 cm; capsule urns 2-3.5 mm when moist; columella exserted when dry; operculum long-conic.   5 Tayloria splachnoides
+ Plants 0.5-1 cm; leaf apices long-acuminate; setae 0.6-1.5 cm; capsule urns 0.8-2 mm when moist; columella not or barely exserted when dry; operculum short-conic.   6 Tayloria acuminata

Lower Taxa


Related Objects Image Gallery 
  • Illustration
  • Illustration
  • Illustration
  • Illustration

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |