| The perithecia are generally imbedded in the outer portion of the stroma, the mouths opening through the carbonous crust. |
| The usual Xylaria has a white, sterile, central portion known as the stroma, bearing a carbonous crust. |
| The walls of the perithecia are carbonous, and confluent with the crust. |
| The use of these fertilizers supplies stressed soils with nutrient-laden carbonous clusters that are found naturally in fertile soils. |
| Plants large, subglobose, with alveolate, sinuate carbonous exterior. |
| The stem is slender and carbonous and bears the carbonous fruit bodies, superficial, but sessile and globose. |
