Differences between Hanlan and Jianlan
Orchid enthusiasts often encounter difficulties in distinguishing between Hanlan and Jianlan due to their similarities, as these two traditional famous orchids are easily confused in horticultural cultivation. Mastering the key morphological characteristics not only enhances the enjoyment of appreciation but also provides a scientific basis for division and propagation.
Comparison of Pseudobulb Morphology
Underground Storage Organ of Hanlan
Hanlan's pseudobulbs exhibit a typical narrow ovoid structure, with a length of up to 4 centimeters and a diameter of about 1.5 centimeters, resembling tiny olives embedded among the leaf bases. The mature pseudobulb epidermis shows a yellowish-brown keratinized feature, with well-developed storage tissue providing ample nutrients for early spring germination.
Energy Storage System of Jianlan
Jianlan's ovoid pseudobulbs have a diameter similar to Hanlan but are 30% shorter in length, with a round shape similar to quail eggs. New pseudobulbs are translucent and light green, while three-year-old pseudobulbs develop unique purple-red patterns, which are important indicators for determining the age of the plant.
Leaf Texture Analysis
Leaf Structure Characteristics of Hanlan
Differences between Hanlan and Jianlan
Hanlan leaves have a lower degree of coriaceous, with a thickness of 0.3mm combined with a streamlined leaf tip to form a unique aerodynamic structure. Under the deep green leaf surface, there are 7-9 parallel secondary veins, which can be seen through strong light as exquisite vein patterns, an evolutionary achievement for adapting to shady environments.
Leaf Evolutionary Advantages of Jianlan
Jianlan thickens its leaves to 0.5mm to form a succulent structure, with a blunt leaf tip that reduces water evaporation. The light green tone combined with high light transmission rate allows it to maintain efficient photosynthesis even in low light conditions, and the waxy layer on the leaf surface acts as a natural disease prevention barrier.
Through systematic comparison, the shape index of pseudobulbs and the cross-sectional structure of leaves are core identification indicators. It is recommended to observe with a micrometer and light transmission testing method, especially during non-flowering periods for plant management, as these characteristics can prevent common mistakes in matching cultivation substrates. Mastering these identification skills will make orchid care more scientific.