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45 results for “Opuntia humifusa”
Opuntia humifusa (Cactaceae) - whole plant - unspecified
Image of Opuntia humifusa (Cactaceae) - whole plant - unspecified
Opuntia humifusa (Cactaceae) - unspecified - unspecified
Image of Opuntia humifusa (Cactaceae) - unspecified - unspecified
Opuntia humifusa (Cactaceae) - unspecified - unspecified
Image of Opuntia humifusa (Cactaceae) - unspecified - unspecified
Opuntia humifusa (Cactaceae) - whole plant - unspecified
Image of Opuntia humifusa (Cactaceae) - whole plant - unspecified
Opuntia humifusa (Cactaceae) - unspecified - unspecified
Image of Opuntia humifusa (Cactaceae) - unspecified - unspecified
Opuntia humifusa (Cactaceae) - whole plant - unspecified
Image of Opuntia humifusa (Cactaceae) - whole plant - unspecified
Opuntia humifusa (Cactaceae) - unspecified - unspecified
Image of Opuntia humifusa (Cactaceae) - unspecified - unspecified
Opuntia humifusa (Cactaceae) - whole plant - unspecified
Image of Opuntia humifusa (Cactaceae) - whole plant - unspecified
FIGURE 11 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 11. Distribution of O. humifusa (stars), O. drummondii (circles), and O. nemoralis (squares). Putative hybrid specimens of O. drummondii × O. mesacantha from Dekalb Co., GA, denoted with asterisk.
FIGURE 9 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 9. Morphological features of O. cespitosa. A) neotype specimen of O. cespitosa (Majure 3275, Woodford Co., KY), B) spreading growth form of O. cespitosa (Majure 1380, Okttibeha Co., MS), C-D) pad shape variation showing glaucous color and cladodes either spiny or spineless (Majure 1380), E) occasional tuberous roots of O. cespitosa (Majure 2609, Lawrence Co., AL), F) flower (Majure 1380) and G) fruit of O. cespitosa (Majure 1380). Photos A and E taken by L.C. Majure, B-D, F, and G taken by M. Pajuelo.
FIGURE 15 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 15. Morphological features of O. humifusa subsp. lata. A) type specimen of O. lata, J.K. Small s.n., Alachua Co., Florida (NY), B-E) growth form, cladode shape, and spine production variation in O. humifusa subsp. lata, F) flower and G) fruits of O. humifusa subsp. lata. B-C and F-G from Wakula Co., Florida (Majure 3378), D from Wayne Co., Mississippi (Majure 1290), E from Levy Co., Florida (Majure 3645). All photos taken by L.C. Majure.
FIGURE 5 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 5. Geographic distribution of O. abjecta (stars), O. austrina (closed circles), O. cespitosa (squares), and O. ochrocentra (arrow). Putative introgressive forms of O. cespitosa in MI and WI are denoted with an asterisk.
FIGURE 12 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 12. Morphological features of O. humifusa. A) neotype specimen of O. humifusa, C.T. Wherry s.n., Berks Co., PA (US), B) clumping/spreading growth form of O. humifusa from Page Co., VA (Majure 3798), C-E) flower, mature cladodes showing inconspicuous glochids, and immature cladode with leaves from Attala Co., Mississippi (Majure 3357), and F) mature fruit of O. humifusa from Webster Co., Mississippi (Philley 498). All photos taken by L.C. Majure.
FIGURE 7 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 7. Morphological features of O. austrina. A) isotype specimen of O. austrina, J.K. Small s.n., Miami-Dade Co., Florida (US), B) example of O. austrina, entity polycarpa from Highlands Co., FL, with spines up to 10 cm long (L.C. Majure 3975), C) tuberous roots of O. austrina (L.C. Majure 4184 (left)) and L.C. Majure 4189 (right)), D-E) growth forms of O. austrina, D) ammophila entity from Marion Co., Florida (L.C. Majure 2754), E) and Indian River Co., Florida (L.C. Majure 4182). All photos taken by L.C. Majure.
FIGURE 3 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 3. Morphological features of O. macrorhiza s.s. A) plant in habitat, B) close-up of flower and floral buds, C) mature fruit, D) flower, E) entire plant in vegetative state showing tuber formation, F) side view of cladode in flower. All from Majure 3510 (Kerr Co., TX; FLAS). All photos taken by L.C. Majure.
FIGURE 4 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 4. Morphological features of O. abjecta. A) type specimen, J.K. Small s.n., Monroe Co., Florida (NY), B) growth form of diploid (L.C. Majure 3908), and C) tetraploid material (L.C. Majure 3318), D) spine development of a terminal cladode of diploid O. abjecta showing 1–3 spines produced per areole (L.C. Majure 3908), E) flower bud of O. abjecta (L.C. Majure 3908), F) slightly thickened roots developing on a specimen planted for almost 2 years (L.C. Majure 3908), G) flowers of diploid (L.C. Majure 3908), and H) tetraploid O. abjecta (L.C. Majure 3318), and (I) barrel-shaped fruit of diploid O. abjecta (L.C. Majure 3908). All photos taken by L.C. Majure.
FIGURE 2 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 2. Phylogeny of the O. humifusa complex. This is a phylogeny of the diploid members of the Humifusa clade, which consists of a SE and SW subclade. The O. humifusa complex is represented by the SE clade, as well as the reticulate taxa shown here (O. cespitosa, O. humifusa, and O. nemoralis) and the putative autotetraploid Opuntia mesacantha subsp. mesacantha (not shown here).
FIGURE 1 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 1. SEM micrographs of characters of Opuntia from the O. humifusa complex. A) close-up of glochids of O. cespitosa at 106x (Majure 736), B-C) close-up of spine surfaces showing overlapping cells creating retrorse barbs in O. drummondii (Majure 843), B) spine tip at 200x, C) mid-section of spine at 289x, D) pollen grain of O. cespitosa (Majure 736) at 850x, E) pollen grain of O. mesacantha subsp. lata at 900x (Ervin s.n.), F) seed of O. cespitosa at 16x (Majure 736), G) seed of O. drummondii at 20x (Majure 843). All photos taken by L.C. Majure.
FIGURE 8 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 8. Morphological features of O. austrina, continued. A) long-shoot leaves of O. austrina from Marion Co., Florida (Majure 5930), B) flower buds of O. austrina, from Indian River Co., Florida (Majure 4182 (left)) and Okeechobee Co., Florida (Majure 4185 (right)), C-D) color variation in flowers of O. austrina, (C from Majure 4182 and D from Majure 3450), and E-F) fruit color and shape variation of O. austrina from Highlands and Polk cos., Florida (Majure 4226, 4227, respectively). All photos taken by L.C. Majure.
FIGURE 10 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States
FIGURE 10. Morphological features of O. drummondii. A) lectotype of O. drummondii, from Maund & Henslow (1846), Drummond s.n., Appalachicola, FL, B) spreading/trailing growth form of O. drummondii (Mann s.n.- Glynn Co., GA), C) young cladodes, showing long shoot leaves and reddish-brown developing spines from Horry Co., SC (Majure 3833), D) flower bud from Forrest Co., Mississippi (Majure 756), E) fibrous roots of O. drummondii showing proximal thickenings from Newton Co., MS, F) flower and G) fruit of O. drummondii (E-G from Majure 4211). Photo D taken by M. Pajuelo, and all other photos taken by L.C. Majure.
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