Tillandsia usneoides
Bromeliaceae
black-moss, long-moss, mousse, mousse espagnole, Spanish-moss
bromeliad family, pineapple family
usually present, often poorly developed in epiphytic taxa.
elongate.
very short to very elongate.
4–8, 2-ranked, often twisted or contorted, gray to silver-gray, 1.5–3 × 0.1–0.2 cm, densely grayish-scaly;
sheath pale, narrowly elliptic, not inflated, not forming pseudobulb, 0.2–0.4 cm wide;
blade filiform, succulent, margins involute to nearly tubular, apex acute.
usually spirally arranged, forming water-impounding rosette, occasionally lax and/or 2-ranked, simple, margins serrate or entire, trichomes nearly always covering surface, peltate, water-absorbing.
scape concealed within leaf sheath, appearing scapeless, pendent with shoot, ± 1 mm diam.
terminal or lateral, sessile to scapose, simple or compound;
bracts usually present, conspicuous.
1, inconspicuous, apparently sessile;
sepals free, ovate, not keeled, 0.6–0.7 cm, thin, veined, apex acute, surfaces glabrous;
corolla spreading, petals spreading, yellow-green, elliptic, to 1 cm;
stamens included;
stigma included, simple-erect.
bisexual or functionally unisexual, radially symmetric to slightly bilaterally symmetric;
perianth in 2 distinct sets of 3;
stamens in 2 series of 3;
ovary inferior or superior;
placentation axile.
to 2.5 cm.
capsules or berries.
plumose, winged, or unappendaged.
bracts enveloping flower, erect, green, broad (covering all or most of rachis, rachis not visible at anthesis), ovate, not keeled, 0.4–0.5 cm, thin-leathery, apex acute, surfaces densely grayish-scaly, venation even to slight.
Tillandsia usneoides
Bromeliaceae
Bromeliaceae contain three subfamilies: Bromelioideae, Pitcairnioideae, and Tillandsioideae. Generic circumscriptions are problematic, especially in parts of the Bromelioideae and Tillandsioideae.
Pineapple, Ananas comosus (Linnaeus) Merrill, the only agriculturally important member of the family, is in worldwide cultivation in tropical climates. Horticultural interest in bromeliads is widespread among the public; the Bromeliad Society, Inc. caters to that interest.
Genera 56, species 2600+ (4 genera, 19 species, and 2 natural hybrids in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaf margins spinose; flowers functionally unisexual, staminate and pistillate on different plants; seeds narrowly winged to almost wingless, plumose | Hechtia |
1. Leaf margins entire; flowers bisexual (in flora) or functionally unisexual; seeds not winged, plumose appendages basal or apical. | → 2 |
2. Inflorescences 2-ranked, 1–50(–200)-flowered | Tillandsia |
2. Inflorescences many-ranked, 5–many-flowered. | → 3 |
3. Floral bracts broad, conspicuous, mostly obscuring rachis, flowers laxly to densely arranged | Guzmania |
3. Floral bracts small, inconspicuous, not obscuring rachis, flowers laxly arranged | Catopsis |
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