Academic Standard: Dry Onion Epidermis w.m. Showing Calcium Oxalate Crystals, 100% Plant Ergastic Substances Visual Clarity

Name: Academic Standard: Dry Onion Epidermis w.m. Showing Calcium Oxalate Crystals, 100% Plant Ergastic Substances Visual Clarity
Price: 2.00 USD
Availability: InStock

This high-precision botanical mount provides a textbook demonstration of calcium oxalate crystals embedded within the cells of the outer dry tunic/scale epidermis of an onion (Allium cepa). Serving as the classic botanical model for plant cellular inclusions and metabolic ergastic substances, this Prepared Microscope Slide delivers 100% clear visualization of solitary prismatic crystals residing within protective epidermal cells.

The pristine whole mount captured showcases an outstanding distribution of sharp, well-defined prismatic and rhomboidal crystal forms set against the translucent lattice of dry scale cell walls, making it an essential reference for plant cell biology and pharmacognosy.

Product Specifications & Quality Excellence:

Standard Dimensions: 25.4mm x 76.2mm (1″ x 3″) premium high-transparency glass slide.
Specimen Type: Whole mount (w.m.) of dry outer scale epidermis of Allium cepa.
Natural Birefringent Optical Clarity: Unstained natural preparation engineered to maximize light refraction, allowing the geometric facets of calcium oxalate crystals to stand out sharply against the cellular backdrop under both brightfield and polarized light.
Long-Term Preservation: Mounted using a durable, optically clear non-yellowing medium under a precision cover glass to prevent crystal dissolution or mechanical shifting.

4 Critical Botanical & Histological Highlights:

Solitary Prismatic Crystals: Easily locate the #1 defining feature—distinct single prismatic, rectangular, or rhomboidal crystals of calcium oxalate monohydrate (prisms/styloids) neatly situated inside individual epidermal cells.
Epidermal Cell Wall Grid: Trace the underlying rectangular network of protective, dead epidermal cells forming the paper-like outer layer of the onion bulb.
High Density & Uniform Distribution: Observe a high-frequency, well-dispersed array of crystals across the entire field of view without clumping or overlapping tissue shadows.
Plant Metabolic Storage Insight: Observe how plants safely sequester excess metabolic calcium and oxalic acid into insoluble, non-toxic crystalline forms within specialized cell vacuoles.

Educational & Botanical Significance:

Plant Ergastic Substances Model: Serves as a 100% authoritative reference standard for secondary school, undergraduate, and graduate biology courses demonstrating non-protoplasmic cell inclusions (ergastic substances).
Pharmacognosy & Plant Identification Baseline: An indispensable #1 visual guide for training students in herbal medicine identification, pharmacognosy, and plant tissue micro-analysis where crystal morphology is a key diagnostic key.
Polarization & Light Microscopy Demonstration: Perfect for demonstrating light birefringence; under cross-polarized light, these crystals refract light brilliantly against a dark background.

Other fixed kits:

Payment & Ordering

Ordering from us is simple and secure. We offer flexible payment options to suit your needs:

Online Orders: We primarily accept PayPal (Credit Card payments are supported via PayPal).
Alternative Methods: For high-volume orders or regional preferences, we also support Bank Transfer (T/T), Western Union, MoneyGram, WeChat Pay, and Alipay.
How to Order: Simply browse our catalog and checkout online, or [Contact Us] for a proforma invoice if using alternative payment methods.

Shipping & Global Delivery

We provide reliable worldwide shipping to ensure your laboratory supplies arrive safely and on time:

Fast Processing: Standard orders are processed and shipped within 3 business days.
Global Couriers: We partner with leading carriers, including DHL, FedEx, UPS, and official Postal services to offer both express and economy options.
Real-time Updates: If your order requires extra preparation time, our team will proactively contact you with a confirmed shipping schedule and tracking details.

Customization & OEM Services

Can’t find a specific specimen? As a leading manufacturer of prepared microscope slides, we specialize in bespoke solutions:

Custom Quotations: Send us your specific list, and our technical team will provide a detailed quote within 12 hours.
OEM & Private Label: We offer professional OEM services to create customized slide sets tailored to your curriculum or branding requirements.
Bulk Inquiries: From rare biological sections to large-scale educational sets, we have the expertise to deliver exactly what you need.

Key Terminology for Microscope Slides

To help you select the most suitable specimen for your research or teaching, please refer to our standard sectioning abbreviations:

W.M. (Whole Mount): The entire organism or structure is preserved and mounted on the slide.
C.S. (Cross Section): A thin transverse section through the organism or tissue plane.
L.S. (Longitudinal Section): A vertical section along the longest plane of the organism.
C.S. & L.S.: Both Cross and Longitudinal sections are mounted on the same slide for side-by-side comparison.

Extensive Catalog: Over 3,000+ Prepared Slides

As a leading Microscope Prepared Slides Manufacturer from China, we provide a comprehensive range of biological specimens across multiple disciplines:

Product Category	Variety Count	Product Category	Variety Count
🌿 Botany	868 Kinds	🧬 Cell Biology & Genetics	64 Kinds
🔬 Histology	375 Kinds	🧪 Botany Pathology	373 Kinds
🦁 Zoology	459 Kinds	➗ Mitosis & Meiosis	66 Kinds
🐾 Animal Pathology	150 Kinds	🐣 Embryology	75 Kinds
🧫 Microbiology	100 Kinds	🦟 Parasitology	120 Kinds
🪨 Petrology (Rock Sections)	291 Kinds	🛠️ Customized Sets	Available

Looking for Custom Microscope Slides?

We specialize in customized preparation to meet specific laboratory or educational requirements.
If your required items are not listed in our standard catalog, we’ve got you covered!

Fast Quotation: Email us your specific list, and receive a formal quote within 12 hours.
Global Support: Our technical team is ready to assist with your scientific discoveries.