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The Irano-Turanian region that has low rainfall and long dry season is characterized by the dominance of hemicryptophytes and chamaephytes (Djamali et al.
2 Meg Megaphanerophytes, Mes Mesophanerophytes, Mic Mierophanerophytes, N Nanophanerophytes, L Linophanerophytes, E Epiphanerophytes, S Succulent phanerophytes, Hph Hemicryptophytes, C Chamae-phytes, G Geophytes, Th Therophytes (Raunkiaer, 1934) Table 2 Leaf form, texture and size of the limestone forest at Mt.
Others are Hemicryptophytes (24%), Phanerophytes (12%), and Geophytes (10%), that is, 54% of Iranian-Toranian plant.
Les therophytes occupent les 45,1%, les chamephytes (26,8%), les hemicryptophytes (19,7%), les geophytes et les phanerophytes (4,23%).
The life form spectrum of the vascular flora indicates the predominance of therophytes (52%), with hemicryptophytes (15%) and phanerophytes (10%) (Figure 4).
The life form spectrum of the recorded species showed the prevalence of theorphytes (37%) followed by chamaephytes (32%), geeophytes (13%), hemicryptophytes (10%) and Phanerophytes (8%).
Observations on the feeding habits of the Indian crested porcupine (Hystrix indica) and the distribution of some hemicryptophytes and geophytes in the Negev Desert Highlands.
The proportions of herbaceous-subshrub/shrub-arboreal (epiphytes, succulents, chamaephytes, hemicryptophytes, and therophytes /phanerophytes) species were calculated for each of the vegetation types, for cerrado-caatinga transition, and for the different cerrado physiognomies.
Proposed by Raunkiaer (1934), the system classifies plants according to forms used to protect their perennating buds during unfavorable seasons, and groups them into five main classes: therophytes, cryptophytes, hemicryptophytes, chamaephytes and phanerophytes, according to their different resistance strategies to environmental conditions.
Then the Hemicryptophytes, helophytes, geophytes Phanerophytes Chamephytes, hydrophyte life forms constitute the next.