Qhov sib txawv tseem ceeb ntawm Lycopodium thiab Selaginella yog Lycopodium yog ib lub clubmoss uas yog homosporous (ib hom spore) thaum Selaginella yog spike moss uas yog heterosporous (ob hom sib txawv ntawm spores).
Lycophyta yog ib pawg ntawm cov nroj tsuag vascular uas yog Kingdom Plantae. Lawv tseem hu ua fern-allies. Lawv yog cov nroj tsuag primitive thiab tsis dais noob, ntoo, txiv hmab txiv ntoo thiab paj. Yog li ntawd, tag nrho cov lycophytes yog herbaceous nroj tsuag. Lawv tsim spores rau kev yug me nyuam. Ntxiv mus, lycophytes lawv muaj cov nplooj tshwj xeeb hu ua microphylls. Muaj peb tsev neeg ntawm lycophytes; Lycopodiaceae, Selaginellaceae, thiab Isoetaceae. Club mosses, quillworts thiab spike mosses belongs rau peb tsev neeg. Lycopodium yog cov genus ntawm qws mosses thaum Selaginella yog ib hom kab laug sab mosses.
Lycopodium yog dab tsi?
Lycopodium yog ib hom ntawm cov qws mosses uas tsim ib hom spores. Lawv cov spores zoo ib yam, ntau thiab tib qhov loj. Lycopodium nroj tsuag yog cov tshuaj ntsuab terrestrial lossis epiphytes. Lycopodium nplooj yog me me thiab teem ib ncig ntawm lub qia. Sporophyte yog lub cim tseem ceeb ntawm Lycopodium. Gametophyte yog ib hom. Nws yog bisexual gametophyte uas yog prothallus.
Daim duab 01: Lycopodium
Prothallus muaj ob qho phev-tsim antheridia thiab qe-tsim archegonia ntawm tib tsob nroj. Tom qab fertilization, sporophyte tsim, thiab nws ua physiologically ywj siab los ntawm gametophyte.
Selaginella yog dab tsi?
Selaginella yog ib hom kab mob ntawm cov kab mosses uas suav nrog tag nrho ntawm 700 hom. Cov nroj tsuag no yog cov tshuaj tsw qab. Lub qia ntawm Selaginella yog creeping thiab dichotomously branched. Selaginella yog ib tsob nroj heterosporous uas tsim ob hom spores. Spores yug hauv sporophylls. Megasporophylls thiab microsporophylls muaj nyob hauv tib lub strobilus. Megasporangia yog tsim nyob rau hauv megasporophylls thaum microsporangia yog tsim nyob rau hauv microsporophylls.
Daim duab 02: Selaginella
Selaginella nplooj yog me me thiab muaj ligules (scale-zoo li outgrowth). Kev muaj cov ligules hauv Selaginella yog qhov txawv ntawm Lycopodium. Selaginella nplooj tau teem rau hauv plaub kab (ob kab ntawm nplooj luv thiab ob kab ntawm nplooj ntev) raws li qia. Selaginella hlob zoo li epiphytes lossis nyob rau hauv pem teb ntawm cov hav zoov ntub dej.
Dab tsi zoo sib xws ntawm Lycopodium thiab Selaginella?
- Ob leeg Lycopodium thiab Selaginella belongs rau clade ntawm Lycophyta.
- Lawv tseem hu ua fern-allies.
- Lawv yog cov noob tsis muaj vascular.
- Tab sis lawv yog cov nroj tsuag qub uas tsis muaj noob, ntoo, txiv hmab txiv ntoo thiab paj.
- Lawv qhia kev hloov ntawm tiam.
- Sporophytes yog lub cim tseem ceeb ntawm lycophytes.
- Lawv yog cov nroj tsuag herbaceous thiab muaj adventitious cag.
- Lawv yog hom epiphytic nyob rau hauv ob hom.
- Branching feem ntau yog dichotomous hauv ob qho tib si Lycopodium thiab Selaginella.
Qhov txawv ntawm Lycopodium thiab Selaginella yog dab tsi?
Lycopodium yog ib hom ntawm cov qws mosses thaum Selaginella yog cov genus ntawm spike mosses. Lycopodium nroj tsuag yog homosporous; li no lawv tsuas tsim ib hom spores thaum Selaginella nroj tsuag yog heterosporous; Yog li ntawd lawv tsim ob hom spores. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm Lycopodium thiab Selaginella.
Cov hauv qab no infographic tabulates ntau qhov sib txawv ntawm Lycopodium thiab Selaginella.
Summary – Lycopodium vs Selaginella
Lycophytes yog cov nroj tsuag tsis muaj vascular. Lawv zoo ib yam li ferns. Lawv muaj cov nplooj tshwj xeeb hu ua microphylls. Lawv yog cov nroj tsuag primitive uas tsis muaj noob, ntoo, txiv hmab txiv ntoo thiab paj. Lycopodium thiab Selaginella yog ob hom ntawm lycophytes. Lycopodium nroj tsuag yog homosporous. Yog li ntawd, lawv tsim tsuas yog ib hom spores uas zoo sib xws, ntau thiab tib qhov loj. Selaginella nroj tsuag yog heterosporous. Yog li ntawd, lawv tsim ob hom spores. Tsis tas li ntawd, Selaginella cov nroj tsuag muaj ligules uas yog scale-zoo li outgrowths. Lycopodium tsis muaj ligules. Yog li, qhov no qhia txog qhov sib txawv ntawm Lycopodium thiab Selaginella.
