Selaginella hansenii
Selaginella peruviana
Hansen's spike-moss
Peruvian spike-moss
not readily fragmenting, prostrate, upperside and underside structurally different, irregularly forked, branches determinate, tips upturned.
not readily fragmenting, prostrate, upperside and underside structurally different, irregularly forked, branches determinate, tips upturned.
with underside leaves slightly longer and narrower than upperside leaves, otherwise monomorphic, not clearly ranked, tightly appressed, ascending, green or green with red spots, or reddish, linear-lanceolate (underside) to linear-triangular (upperside), (2–)3–4.5 × 0.5–0.6 mm;
abaxial ridges present;
base abruptly adnate, pubescent (sometimes glabrous);
margins ciliate, cilia white to white opaque, strongly appressed and ascending, 0.03–0.1 mm;
apex with bristle white to white-opaque, 0.5–1.4 mm (those on underside leaves sometimes 1/4–1/2 longer than those on upperside leaves).
dimorphic, arranged in 8 ranks, tightly appressed, ascending, green;
abaxial ridges present;
apex with persistent, whitish, terete bristle 0.3–0.8 mm.
solitary, 5–7 mm;
sporophylls ovate-deltate to ovate-triangular, abaxial ridges not prominent, base glabrous, margins short-ciliate, apex bristled.
solitary, 0.5–2 cm;
sporophylls ovate-deltate to ovate, abaxial ridges not prominent, base glabrous, margins short-ciliate, apex bristled.
borne on upperside of stems, throughout stem length, 0.25–0.45 mm diam.
borne on upperside of stems, throughout stem length, 0.23–0.33 mm diam.
leaves narrowly linear-lanceolate (on central ranks) to falcate (on marginal ranks), 2.5–4 × 0.4–0.6 mm;
base decurrent (oblique on marginal ranks), pubescent (sometimes glabrous);
margins ciliate, cilia transparent to opaque, spreading at base, ascending toward apex, 0.1–0.15 mm.
leaves linear-lanceolate (on central ranks) to falcate (on marginal ranks), 2.3–2.75 × 0.5–0.55 mm;
base abruptly adnate, pubescent;
margins ciliate, cilia transparent to opaque, ascending or spreading, 0.08–0.16 mm.
Selaginella hansenii
Selaginella peruviana
Leaf dimorphism in Selaginella hansenii is only slightly and inconsistently expressed; the upperside leaves tend to be more lanceolate, short, and slightly thick, whereas the underside leaves tend to be more linear, longer, and thinner, but in some specimens the leaves are monomorphic. Red leaves are rare within Selaginella subg. Tetragonostachys, otherwise found in the flora only occasionally in S. rupestris. Such leaves are more common in S. steyermarkii Alston from southern Mexico and Guatemala and S. sartorii Hieronymus from Mexico.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
R. M. Tryon (1955) reported an elevation range of 600–3000 m for Selaginella peruviana in the United States.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
