Blue Umbo

Description

# 🔵 Blue Umbo – 10cc Liquid Culture Syringe

The **Blue Umbo** liquid culture is a premium laboratory-prepared mycelial culture featuring vigorous growth characteristics and the unmistakable pointed cap morphology that gives this cultivar its name. Suspended in a sterile nutrient solution, each **10cc syringe** contains healthy, visible mycelium ready for research and microscopy applications.

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## 🍄 Macro-Morphological Characteristics

### 🧢 Pileus (Cap)

* Diameter ranges from **25–65 mm**
* Distinct **conic to sub-umbonate** cap shape that frequently retains a pronounced central point even at maturity
* Bell-shaped profile with margins that remain slightly curved downward rather than flattening completely

### ✨ Cap Surface (Cuticle)

* Highly hygrophanous
* Rich chestnut to deep sepia coloration when hydrated
* Dries to a striking **golden cream** with subtle pearlescent metallic highlights near the umbo
* Smooth, glabrous surface with fine radial fibrils

### 🌙 Gills (Lamellae)

* Adnexed attachment
* Close spacing
* Begin pale silver-gray before maturing to smoky violet-gray
* Gill edges remain noticeably lighter with finely fringed margins

### 🌿 Stem (Stipe)

* Long, slender profile
* **70–110 mm** tall × **4–7 mm** thick
* Bright white, fibrous texture
* Rapid cobalt-blue bruising when disturbed
* Persistent membranous annulus that commonly tears during expansion

### 🔹 Flesh (Context)

* Firm white interior
* Immediately bruises deep indigo-blue after handling or sectioning
* Dense, resilient texture

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# 🔬 Microscopy

### 🧫 Spore Print

* Dark violet-black to deep purple-brown

### 🔬 Basidiospores

* Size:
**12–15 μm × 7.5–8.5 μm**
* Thick-walled
* Broad germ pore
* Sub-ellipsoid in face view

### 🧪 Basidia

* Predominantly four-spored
* Clavate
* Hyaline

### 🧬 Sterile Cells

* Abundant cheilocystidia
* Scattered pleurocystidia
* Variable fusoid to lecythiform morphology

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# 🌱 Mycelial Growth Characteristics

### ⚡ Growth Habit

Blue Umbo produces vigorous, predominantly rhizomorphic growth with thick rope-like hyphae that rapidly explore nutrient media while maintaining a feathered advancing edge.

### 🧬 Sectoring

* Low to moderate natural sectoring
* Excellent stability for repeated transfers
* Suitable for isolation work and phenotype preservation

### 🚀 Colonization Speed

* Fast-growing culture
* Typical grain colonization:
**12–16 days** under optimal sterile laboratory conditions

### 🕸️ Density

* Dense, bright white mycelium
* Strong substrate colonization
* Excellent resistance to overlay

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# 🧪 Laboratory Cultivation Notes

### 🌾 Compatible Media

* MEA
* PDA
* Rye grain
* Wheat
* Supplemented hardwood substrates
* Pasteurized substrates

### 🌡️ Fruiting Parameters

* **Temperature:** 21–24°C (70–75°F)
* **Humidity:** 88–93%
* **Fresh Air Exchange:** High

Blue Umbo responds particularly well to generous fresh air exchange, helping preserve its signature elongated stems and sharply defined umbonate caps while minimizing excessive aerial mycelium.

### 📈 Productivity

* Excellent pin set
* Reliable canopy formation
* Strong multi-flush performance
* Dense, uniform colonization across bulk substrates

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# 🧬 Genetic Background

Blue Umbo is a stabilized **Psilocybe cubensis** cultivar recognized for its elegant conic cap morphology, vigorous rhizomorphic growth, and consistent cultivation performance. The cultivar combines rapid colonization with distinctive macro-features that make it especially appealing for microscopy enthusiasts, collectors, and mycological research.