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570 results for “Euphorbia”
FIGURE 2 in First record of Euphorbia pedersenii Subils (Euphorbiaceae) for Brazil
FIGURE 2. Distribution map of Euphorbia pedersenii. Red triangles: new records of E. pedersenii in Brazil; black circles: the known records of E. pedersenii in Corrientes, Argentina.
FIGURE 3 in Seed morphology of perennial taxa of Euphorbia section Pithyusa (Euphorbiaceae) in Turkey
FIGURE 3. SEM micrographs of seeds surface ornamentation. a. Euphorbia glareosa; b. E. pannonica; c. E. erythredon; d. E. petrophila; e. E. smirnovii; f. E. thessala; g. E. seguieriana; h. E. niciciana; i. E. pestalozzae; j. E. pisidica; k. E. cheiradenia; l. E. yildirimlii; m. E. macroclada; n. E. terracina; o. detail of testa ornamentation of Euphorbia sect. Pithyusa taxa; p. detail of testa ornamentation of E. terracina. Scale bar a-n: 50 μm.
FIGURE 1 in Seed morphology of perennial taxa of Euphorbia section Pithyusa (Euphorbiaceae) in Turkey
FIGURE 1. Stereomicroscope micrographs of seeds in Euphorbia sect. Pithyusa. a. E. glareosa; b. E. pannonica; c. E. erythredon; d. E. petrophila; e. E. smirnovii; f. E. thessala; g. E. seguieriana; h. E. niciciana; i. E. pestalozzae; j. E. pisidica; k. E. cheiradenia; l. E.
FIGURE 2 in Typification of the names Euphorbia berteroana and Euphorbia bicephala (Euphorbiaceae)
FIGURE 2. Holotype of Euphorbia bicephala Bertol. from Bertoloni's collection in BOLO (photo by U. Mossetti).
FIGURE 1 in Typification of the names Euphorbia berteroana and Euphorbia bicephala (Euphorbiaceae)
FIGURE 1. Lectotype of Euphorbia berteroana Balb. ex Spreng. from Balbis' collection in TO (photo by L. Guglielmone).
FIGURE 2. Euphorbia pseudocontorta. A in A further new species of Euphorbia (Euphorbiaceae) from Moçambique
FIGURE 2. Euphorbia pseudocontorta. A, young spine-complex and leaf-rudiment from above (scale 2 mm, as for B–E). B, young spine-complex and leaf-rudiment from side. C, side view of cyme in first male stage. D, side view of cyme in female stage. E, face view of cyathium. F, anther and bracteoles (scale 1 mm, as for G). G, female floret inside dissected cyathium. A, B, C, E drawn by P.V. Bruyns from Bruyns 8538, south of Ligonha, Moçambique. D, F, G from Bruyns 7795, NE of Molocue, Moçambique.
FIGURE 9. Euphorbia steelpoortensis. A in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 9. Euphorbia steelpoortensis. A, young spines and leaf-rudiment from above (scale 2 mm, as for B–E). B, young spines and leaf-rudiment from side. C, spine-complex from above showing shape of spine-shield (dotted line). D, side view of part of cyme in female stage. E, face view of cyathium in late male stage. F, anthers and bracteole (scale 1 mm, as for G, H). G, H, female floret. Drawn by P. Bruyns from: A–G, Bruyns 13555, Burgersfort, Olifants River Valley, South Africa; H, SW of Haenertsburg, Winter 5196 (NBG).
FIGURE 10. Euphorbia subsalsa subsp. subsalsa. A, B in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 10. Euphorbia subsalsa subsp. subsalsa. A, B, young spines and leaf-rudiment from above (scale 2 mm, as for B–E). C, young spines and leaf-rudiment from side. D, side view of cyme in first male stage. E, side view of cyathium in female stage. F, anther and bracteole (scale 1 mm, as for G). G, female floret. Drawn by P. Bruyns from: A–F, Bruyns 10402 (BOL), 10 km towards Sao Nicolau, north of Namibe, Angola; G, Bruyns 10742 (BOL), 48 km north of Lucira, Angola.
FIGURE 3 in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 3. Distribution of Euphorbia otjipembana (circle = subsp. otjipembana, triangle = subsp. fluvialis).
FIGURE 6 in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 6. Distribution of Euphorbia schinzii (inverted triangle = subsp. schinzii, circle = subsp. bechuanica, upright triangle = subsp. schinzioides).
FIGURE 7 in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 7. Vegetative variability in E. schinzii in Botswana. A, E. schinzii subsp. bechuanica, plant ± 30 × 150 cm, Mkarikari Pan, Botswana, Bruyns 12336 (S), typical 'E. limpopoana' of Leach & Carter (2001). B, plant ± 20 × 30 cm, with the robust branches and spines of subsp. bechuanica and with hardly any rhizomatous growth, Ramotswa, Botswana, Bruyns 12291 (UPS). C, plant with some rhizomatous growth, branches to ± 10 cm tall, stout, with the robust spines of subsp. bechuanica, Ramotswa, Botswana, Bruyns 12291 (UPS). D, plant with strongly rhizomatous growth, branches to 8 cm tall, but more slender and more weakly spined, Ramotswa, Botswana, Bruyns 12291 (UPS). Plants from Ramotswa were referred to as 'E. schinzii' by Hargreaves (1994) and Leach & Carter (2001) and here they are treated as E. schinzii subsp. schinzioides.
FIGURE 2 in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 2. Distribution of Euphorbia clivicola (circle = subsp. clivicola, triangle = subsp. calcritica).
FIGURE 4. Euphorbia pisima. A, B in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 4. Euphorbia pisima. A, B, young spines and leaf-rudiment from above (scale 2 mm, as for B–E). C, side view of young spines and leaf-rudiment. D, side view of cyme in second male stage (females beginning to shrivel). E, side view of cyathium in female stage. F, anthers and bracteole (scale 1 mm, as for G, H). G, H, female floret. Drawn by P. Bruyns from Bruyns 6607.
FIGURE 1 in A review of the Euphorbia schinzii-complex (Euphorbiaceae) in southern Africa
FIGURE 1. Tips of branches showing arrangement of tubercles and spine-shields with spines and stipular prickles. A–D, tubercles fused vertically into angles (though fusion of tubercles is the least in D), often with larger stipular prickles (largest in A and B and smallest in D) and spine-shields narrowly elliptic in A and B becoming more narrowly deltate in C and D, E–H, tubercles not fused vertically into angles, with minute stipular prickles and shortly deltate spine-shields, which are especially short in E and G. A, E. schinzii subsp. schinzii, Bruyns 9390 (BOL), ± 8 mm thick. B, E. schinzii subsp. bechuanica, Bruyns 12101 (BOL), ± 10 mm thick. C, E. schinzii subsp. schinzioides, Bruyns 12426 (BOL), ± 8 mm thick. D, E. venteri, Bruyns 12354 (BOL), ± 6 mm thick. E, E. clivicola subsp. clivicola, Bruyns 12115 (BOL), ± 10 mm thick. F, E. clivicola subsp. clivicola, Bruyns 11329 (BOL), ± 6 mm thick. G, E. clivicola subsp. clivicola, Bruyns 13556 (BOL), ± 8 mm thick. H, E. clivicola subsp. calcritica, Bruyns 12045 (BOL), ± 6 mm thick.
FIGURE 1. E in Euphorbia melanohydrata subsp. conica (Euphorbiaceae), a new subspecies from Namibia, with notes on the identification of similar medusoid euphorbias
FIGURE 1. E. melanohydrata subsp. conica: (A) habit; (B) fruit, lateral and apical views; (C) female flower; (D) bisexual cyathium from above (male flowers still immature); (E) involucral gland, dorsal view (left) and lateral view in transverse section (right); (F) involucral lobe; (G) fascicular bract; (H) male flower. Voucher: Swanepoel 263. Scale bar 10 mm (A) or 1 mm (B–H). Illustration by Lesley Deysel.
FIGURE 1. A in A new species of Euphorbia (Euphorbiaceae) from Guangxi, China
FIGURE 1. A, shoots and root; B, leaf base (abaxial); C, cyathium; D, fruit; E, seed; F, caruncle (illustrated by Yunxi Zhu, A–B & D–F from Zhong Ji-xin 83469, C from Li Guang-Zhao & Huang Fu-Xiang 54).
FIGURE 2. A–E in A new species of Euphorbia (Euphorbiaceae) from Guangxi, China
FIGURE 2. A–E, various involucral-leaves, with young cyathia, male and female flowers; F, young fruits; G, fruit and seed (with caducous caruncle); H, habit; I, specimen (Li Guangxi 15042, PE); J, specimen (Wen Hequn w096, K).
FIGURE 2. E in Euphorbia otjipembana subsp. okakoraensis (Euphorbiaceae), a new subspecies from the Kaokoveld, Namibia, with an amplified description of Euphorbia otjipembana
FIGURE 2. E. otjipembana subsp. okakoraensis: (A) flowering branch; (B) branch in transverse section; (C) bisexual cyathium from above; (D) cyme with old central male cyathium and two bisexual cyathia; (E) peduncular bract; (F) cyme branch bract; (G) involucral lobe (adaxial side); (H) male flowers (rarely fused at base, left); (I) fascicular bract with bracteole; (J) female flower; (K) seed. Scale bar 5 mm (A and B), or 1 mm (C–K). All from Swanepoel 271. Illustration by Lesley Deysel.
FIGURE 1 in Euphorbia otjipembana subsp. okakoraensis (Euphorbiaceae), a new subspecies from the Kaokoveld, Namibia, with an amplified description of Euphorbia otjipembana
FIGURE 1. Euphorbia otjipembana subsp. okakoraensis: (A) plant in natural habitat, ± 0.8 m tall; (B) branch indicating spine shields.
FIGURE 3 in Euphorbia otjipembana subsp. okakoraensis (Euphorbiaceae), a new subspecies from the Kaokoveld, Namibia, with an amplified description of Euphorbia otjipembana
FIGURE 3. Known distribution of E. otjipembana: subsp. otjipembana (open circle), both subspp. okakoraensis and otjipembana (black dot).
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